Home / 10,240.91-14,136.81-6,885.66

Finding the Fourth Proportional to 10,240.91, 14,136.81 and 6,885.66

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Solution

The fourth proportional to 10,240.91, 14,136.81 and 6,885.66 is: 9,505.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,240.91 : 14,136.81 = 6,885.66 : x
  2. Step 2: Convert to fraction form
    10,240.91/14,136.81 = 6,885.66/x
  3. Step 3: Cross multiply
    10,240.91x = 14,136.81 × 6,885.66
  4. Step 4: Simplify right side
    10,240.91x = 97,341,267.14
  5. Step 5: Solve for x
    x = 97,341,267.14/10,240.91
  6. Step 6: Final answer
    x = 9,505.14

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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.