Home / 15,588.60-21,516.84-10,874.40

Finding the Fourth Proportional to 15,588.60, 21,516.84 and 10,874.40

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Solution

The fourth proportional to 15,588.60, 21,516.84 and 10,874.40 is: 15,009.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,588.60 : 21,516.84 = 10,874.40 : x
  2. Step 2: Convert to fraction form
    15,588.60/21,516.84 = 10,874.40/x
  3. Step 3: Cross multiply
    15,588.60x = 21,516.84 × 10,874.40
  4. Step 4: Simplify right side
    15,588.60x = 233,982,724.90
  5. Step 5: Solve for x
    x = 233,982,724.90/15,588.60
  6. Step 6: Final answer
    x = 15,009.86

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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.