Home / 10,640.04-14,685.01-8,117.39

Finding the Fourth Proportional to 10,640.04, 14,685.01 and 8,117.39

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Solution

The fourth proportional to 10,640.04, 14,685.01 and 8,117.39 is: 11,203.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.04 : 14,685.01 = 8,117.39 : x
  2. Step 2: Convert to fraction form
    10,640.04/14,685.01 = 8,117.39/x
  3. Step 3: Cross multiply
    10,640.04x = 14,685.01 × 8,117.39
  4. Step 4: Simplify right side
    10,640.04x = 119,203,859.61
  5. Step 5: Solve for x
    x = 119,203,859.61/10,640.04
  6. Step 6: Final answer
    x = 11,203.33

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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.