Home / 10,385.31-14,328.61-6,136.76

Finding the Fourth Proportional to 10,385.31, 14,328.61 and 6,136.76

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Solution

The fourth proportional to 10,385.31, 14,328.61 and 6,136.76 is: 8,466.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.31 : 14,328.61 = 6,136.76 : x
  2. Step 2: Convert to fraction form
    10,385.31/14,328.61 = 6,136.76/x
  3. Step 3: Cross multiply
    10,385.31x = 14,328.61 × 6,136.76
  4. Step 4: Simplify right side
    10,385.31x = 87,931,295.70
  5. Step 5: Solve for x
    x = 87,931,295.70/10,385.31
  6. Step 6: Final answer
    x = 8,466.89

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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.