Home / 18,237.76-25,173.59-10,685.72

Finding the Fourth Proportional to 18,237.76, 25,173.59 and 10,685.72

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Solution

The fourth proportional to 18,237.76, 25,173.59 and 10,685.72 is: 14,749.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237.76 : 25,173.59 = 10,685.72 : x
  2. Step 2: Convert to fraction form
    18,237.76/25,173.59 = 10,685.72/x
  3. Step 3: Cross multiply
    18,237.76x = 25,173.59 × 10,685.72
  4. Step 4: Simplify right side
    18,237.76x = 268,997,943.64
  5. Step 5: Solve for x
    x = 268,997,943.64/18,237.76
  6. Step 6: Final answer
    x = 14,749.51

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.