Home / 13,045.17-18,003.96-8,572.62

Finding the Fourth Proportional to 13,045.17, 18,003.96 and 8,572.62

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Solution

The fourth proportional to 13,045.17, 18,003.96 and 8,572.62 is: 11,831.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.17 : 18,003.96 = 8,572.62 : x
  2. Step 2: Convert to fraction form
    13,045.17/18,003.96 = 8,572.62/x
  3. Step 3: Cross multiply
    13,045.17x = 18,003.96 × 8,572.62
  4. Step 4: Simplify right side
    13,045.17x = 154,341,107.58
  5. Step 5: Solve for x
    x = 154,341,107.58/13,045.17
  6. Step 6: Final answer
    x = 11,831.28

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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.