Home / 15,018.60-20,726.28-8,304.96

Finding the Fourth Proportional to 15,018.60, 20,726.28 and 8,304.96

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Solution

The fourth proportional to 15,018.60, 20,726.28 and 8,304.96 is: 11,461.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018.60 : 20,726.28 = 8,304.96 : x
  2. Step 2: Convert to fraction form
    15,018.60/20,726.28 = 8,304.96/x
  3. Step 3: Cross multiply
    15,018.60x = 20,726.28 × 8,304.96
  4. Step 4: Simplify right side
    15,018.60x = 172,130,926.35
  5. Step 5: Solve for x
    x = 172,130,926.35/15,018.60
  6. Step 6: Final answer
    x = 11,461.18

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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.