Home / 13,292.20-18,343.23-7,323.81

Finding the Fourth Proportional to 13,292.20, 18,343.23 and 7,323.81

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Solution

The fourth proportional to 13,292.20, 18,343.23 and 7,323.81 is: 10,106.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.20 : 18,343.23 = 7,323.81 : x
  2. Step 2: Convert to fraction form
    13,292.20/18,343.23 = 7,323.81/x
  3. Step 3: Cross multiply
    13,292.20x = 18,343.23 × 7,323.81
  4. Step 4: Simplify right side
    13,292.20x = 134,342,331.31
  5. Step 5: Solve for x
    x = 134,342,331.31/13,292.20
  6. Step 6: Final answer
    x = 10,106.86

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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.