Home / 10,861.43-14,988.85-6,145.61

Finding the Fourth Proportional to 10,861.43, 14,988.85 and 6,145.61

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Solution

The fourth proportional to 10,861.43, 14,988.85 and 6,145.61 is: 8,480.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.43 : 14,988.85 = 6,145.61 : x
  2. Step 2: Convert to fraction form
    10,861.43/14,988.85 = 6,145.61/x
  3. Step 3: Cross multiply
    10,861.43x = 14,988.85 × 6,145.61
  4. Step 4: Simplify right side
    10,861.43x = 92,115,536.14
  5. Step 5: Solve for x
    x = 92,115,536.14/10,861.43
  6. Step 6: Final answer
    x = 8,480.98

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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.