Home / 10,291.91-14,203.11-6,315.23

Finding the Fourth Proportional to 10,291.91, 14,203.11 and 6,315.23

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Solution

The fourth proportional to 10,291.91, 14,203.11 and 6,315.23 is: 8,715.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,291.91 : 14,203.11 = 6,315.23 : x
  2. Step 2: Convert to fraction form
    10,291.91/14,203.11 = 6,315.23/x
  3. Step 3: Cross multiply
    10,291.91x = 14,203.11 × 6,315.23
  4. Step 4: Simplify right side
    10,291.91x = 89,695,906.37
  5. Step 5: Solve for x
    x = 89,695,906.37/10,291.91
  6. Step 6: Final answer
    x = 8,715.19

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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.