Home / 10,254.08-14,148.91-5,715.78

Finding the Fourth Proportional to 10,254.08, 14,148.91 and 5,715.78

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Solution

The fourth proportional to 10,254.08, 14,148.91 and 5,715.78 is: 7,886.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,254.08 : 14,148.91 = 5,715.78 : x
  2. Step 2: Convert to fraction form
    10,254.08/14,148.91 = 5,715.78/x
  3. Step 3: Cross multiply
    10,254.08x = 14,148.91 × 5,715.78
  4. Step 4: Simplify right side
    10,254.08x = 80,872,056.80
  5. Step 5: Solve for x
    x = 80,872,056.80/10,254.08
  6. Step 6: Final answer
    x = 7,886.82

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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.