Home / 10,901.87-15,045.08-6,425.81

Finding the Fourth Proportional to 10,901.87, 15,045.08 and 6,425.81

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Solution

The fourth proportional to 10,901.87, 15,045.08 and 6,425.81 is: 8,867.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,901.87 : 15,045.08 = 6,425.81 : x
  2. Step 2: Convert to fraction form
    10,901.87/15,045.08 = 6,425.81/x
  3. Step 3: Cross multiply
    10,901.87x = 15,045.08 × 6,425.81
  4. Step 4: Simplify right side
    10,901.87x = 96,676,825.51
  5. Step 5: Solve for x
    x = 96,676,825.51/10,901.87
  6. Step 6: Final answer
    x = 8,867.91

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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.