Home / 15,874.83-21,901.10-10,208.81

Finding the Fourth Proportional to 15,874.83, 21,901.10 and 10,208.81

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Solution

The fourth proportional to 15,874.83, 21,901.10 and 10,208.81 is: 14,084.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,874.83 : 21,901.10 = 10,208.81 : x
  2. Step 2: Convert to fraction form
    15,874.83/21,901.10 = 10,208.81/x
  3. Step 3: Cross multiply
    15,874.83x = 21,901.10 × 10,208.81
  4. Step 4: Simplify right side
    15,874.83x = 223,584,008.14
  5. Step 5: Solve for x
    x = 223,584,008.14/15,874.83
  6. Step 6: Final answer
    x = 14,084.18

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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.