Home / 10,715.40-14,787.18-5,999.40

Finding the Fourth Proportional to 10,715.40, 14,787.18 and 5,999.40

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Solution

The fourth proportional to 10,715.40, 14,787.18 and 5,999.40 is: 8,279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.40 : 14,787.18 = 5,999.40 : x
  2. Step 2: Convert to fraction form
    10,715.40/14,787.18 = 5,999.40/x
  3. Step 3: Cross multiply
    10,715.40x = 14,787.18 × 5,999.40
  4. Step 4: Simplify right side
    10,715.40x = 88,714,207.69
  5. Step 5: Solve for x
    x = 88,714,207.69/10,715.40
  6. Step 6: Final answer
    x = 8,279.13

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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.