Home / 13,251.48-18,303.08-9,660.75

Finding the Fourth Proportional to 13,251.48, 18,303.08 and 9,660.75

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Solution

The fourth proportional to 13,251.48, 18,303.08 and 9,660.75 is: 13,343.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.48 : 18,303.08 = 9,660.75 : x
  2. Step 2: Convert to fraction form
    13,251.48/18,303.08 = 9,660.75/x
  3. Step 3: Cross multiply
    13,251.48x = 18,303.08 × 9,660.75
  4. Step 4: Simplify right side
    13,251.48x = 176,821,431.81
  5. Step 5: Solve for x
    x = 176,821,431.81/13,251.48
  6. Step 6: Final answer
    x = 13,343.52

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Half scale
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Double scale
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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.