Home / 10,861.01-14,987.90-6,145.19

Finding the Fourth Proportional to 10,861.01, 14,987.90 and 6,145.19

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Solution

The fourth proportional to 10,861.01, 14,987.90 and 6,145.19 is: 8,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.01 : 14,987.90 = 6,145.19 : x
  2. Step 2: Convert to fraction form
    10,861.01/14,987.90 = 6,145.19/x
  3. Step 3: Cross multiply
    10,861.01x = 14,987.90 × 6,145.19
  4. Step 4: Simplify right side
    10,861.01x = 92,103,493.20
  5. Step 5: Solve for x
    x = 92,103,493.20/10,861.01
  6. Step 6: Final answer
    x = 8,480.20

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Half scale
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Double scale
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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.