Home / 13,237.04-18,254.59-8,691.70

Finding the Fourth Proportional to 13,237.04, 18,254.59 and 8,691.70

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Solution

The fourth proportional to 13,237.04, 18,254.59 and 8,691.70 is: 11,986.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.04 : 18,254.59 = 8,691.70 : x
  2. Step 2: Convert to fraction form
    13,237.04/18,254.59 = 8,691.70/x
  3. Step 3: Cross multiply
    13,237.04x = 18,254.59 × 8,691.70
  4. Step 4: Simplify right side
    13,237.04x = 158,663,470.70
  5. Step 5: Solve for x
    x = 158,663,470.70/13,237.04
  6. Step 6: Final answer
    x = 11,986.33

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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.