Home / 10,641.80-14,686.38-7,102.76

Finding the Fourth Proportional to 10,641.80, 14,686.38 and 7,102.76

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Solution

The fourth proportional to 10,641.80, 14,686.38 and 7,102.76 is: 9,802.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,641.80 : 14,686.38 = 7,102.76 : x
  2. Step 2: Convert to fraction form
    10,641.80/14,686.38 = 7,102.76/x
  3. Step 3: Cross multiply
    10,641.80x = 14,686.38 × 7,102.76
  4. Step 4: Simplify right side
    10,641.80x = 104,313,832.41
  5. Step 5: Solve for x
    x = 104,313,832.41/10,641.80
  6. Step 6: Final answer
    x = 9,802.27

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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.