Home / 10,440.14-14,407.28-5,724.40

Finding the Fourth Proportional to 10,440.14, 14,407.28 and 5,724.40

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Solution

The fourth proportional to 10,440.14, 14,407.28 and 5,724.40 is: 7,899.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.14 : 14,407.28 = 5,724.40 : x
  2. Step 2: Convert to fraction form
    10,440.14/14,407.28 = 5,724.40/x
  3. Step 3: Cross multiply
    10,440.14x = 14,407.28 × 5,724.40
  4. Step 4: Simplify right side
    10,440.14x = 82,473,033.63
  5. Step 5: Solve for x
    x = 82,473,033.63/10,440.14
  6. Step 6: Final answer
    x = 7,899.61

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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.