Home / 18,432.90-25,437.78-13,064.76

Finding the Fourth Proportional to 18,432.90, 25,437.78 and 13,064.76

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Solution

The fourth proportional to 18,432.90, 25,437.78 and 13,064.76 is: 18,029.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,432.90 : 25,437.78 = 13,064.76 : x
  2. Step 2: Convert to fraction form
    18,432.90/25,437.78 = 13,064.76/x
  3. Step 3: Cross multiply
    18,432.90x = 25,437.78 × 13,064.76
  4. Step 4: Simplify right side
    18,432.90x = 332,338,490.63
  5. Step 5: Solve for x
    x = 332,338,490.63/18,432.90
  6. Step 6: Final answer
    x = 18,029.64

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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.