Home / 15,019.60-20,726.94-8,305.24

Finding the Fourth Proportional to 15,019.60, 20,726.94 and 8,305.24

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Solution

The fourth proportional to 15,019.60, 20,726.94 and 8,305.24 is: 11,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.60 : 20,726.94 = 8,305.24 : x
  2. Step 2: Convert to fraction form
    15,019.60/20,726.94 = 8,305.24/x
  3. Step 3: Cross multiply
    15,019.60x = 20,726.94 × 8,305.24
  4. Step 4: Simplify right side
    15,019.60x = 172,142,211.17
  5. Step 5: Solve for x
    x = 172,142,211.17/15,019.60
  6. Step 6: Final answer
    x = 11,461.17

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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.