Home / 13,052.50-18,012.45-7,387.15

Finding the Fourth Proportional to 13,052.50, 18,012.45 and 7,387.15

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Solution

The fourth proportional to 13,052.50, 18,012.45 and 7,387.15 is: 10,194.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,052.50 : 18,012.45 = 7,387.15 : x
  2. Step 2: Convert to fraction form
    13,052.50/18,012.45 = 7,387.15/x
  3. Step 3: Cross multiply
    13,052.50x = 18,012.45 × 7,387.15
  4. Step 4: Simplify right side
    13,052.50x = 133,060,670.02
  5. Step 5: Solve for x
    x = 133,060,670.02/13,052.50
  6. Step 6: Final answer
    x = 10,194.27

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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.