Home / 15,270.32-21,046.72-10,156.68

Finding the Fourth Proportional to 15,270.32, 21,046.72 and 10,156.68

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Solution

The fourth proportional to 15,270.32, 21,046.72 and 10,156.68 is: 13,998.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,270.32 : 21,046.72 = 10,156.68 : x
  2. Step 2: Convert to fraction form
    15,270.32/21,046.72 = 10,156.68/x
  3. Step 3: Cross multiply
    15,270.32x = 21,046.72 × 10,156.68
  4. Step 4: Simplify right side
    15,270.32x = 213,764,853.62
  5. Step 5: Solve for x
    x = 213,764,853.62/15,270.32
  6. Step 6: Final answer
    x = 13,998.72

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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.