Home / 10,861.87-14,989.58-6,147.13

Finding the Fourth Proportional to 10,861.87, 14,989.58 and 6,147.13

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Solution

The fourth proportional to 10,861.87, 14,989.58 and 6,147.13 is: 8,483.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.87 : 14,989.58 = 6,147.13 : x
  2. Step 2: Convert to fraction form
    10,861.87/14,989.58 = 6,147.13/x
  3. Step 3: Cross multiply
    10,861.87x = 14,989.58 × 6,147.13
  4. Step 4: Simplify right side
    10,861.87x = 92,142,896.91
  5. Step 5: Solve for x
    x = 92,142,896.91/10,861.87
  6. Step 6: Final answer
    x = 8,483.15

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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.