Home / 13,292.64-18,345.13-9,929.61

Finding the Fourth Proportional to 13,292.64, 18,345.13 and 9,929.61

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Solution

The fourth proportional to 13,292.64, 18,345.13 and 9,929.61 is: 13,703.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.64 : 18,345.13 = 9,929.61 : x
  2. Step 2: Convert to fraction form
    13,292.64/18,345.13 = 9,929.61/x
  3. Step 3: Cross multiply
    13,292.64x = 18,345.13 × 9,929.61
  4. Step 4: Simplify right side
    13,292.64x = 182,160,056.99
  5. Step 5: Solve for x
    x = 182,160,056.99/13,292.64
  6. Step 6: Final answer
    x = 13,703.83

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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.