Home / 10,861.31-14,988.51-6,145.61

Finding the Fourth Proportional to 10,861.31, 14,988.51 and 6,145.61

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Solution

The fourth proportional to 10,861.31, 14,988.51 and 6,145.61 is: 8,480.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.31 : 14,988.51 = 6,145.61 : x
  2. Step 2: Convert to fraction form
    10,861.31/14,988.51 = 6,145.61/x
  3. Step 3: Cross multiply
    10,861.31x = 14,988.51 × 6,145.61
  4. Step 4: Simplify right side
    10,861.31x = 92,113,462.00
  5. Step 5: Solve for x
    x = 92,113,462.00/10,861.31
  6. Step 6: Final answer
    x = 8,480.88

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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.