Home / 15,163.31-20,925.37-8,875.69

Finding the Fourth Proportional to 15,163.31, 20,925.37 and 8,875.69

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Solution

The fourth proportional to 15,163.31, 20,925.37 and 8,875.69 is: 12,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163.31 : 20,925.37 = 8,875.69 : x
  2. Step 2: Convert to fraction form
    15,163.31/20,925.37 = 8,875.69/x
  3. Step 3: Cross multiply
    15,163.31x = 20,925.37 × 8,875.69
  4. Step 4: Simplify right side
    15,163.31x = 185,727,056.04
  5. Step 5: Solve for x
    x = 185,727,056.04/15,163.31
  6. Step 6: Final answer
    x = 12,248.45

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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.