Home / 13,375.17-18,460.02-7,708.90

Finding the Fourth Proportional to 13,375.17, 18,460.02 and 7,708.90

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Solution

The fourth proportional to 13,375.17, 18,460.02 and 7,708.90 is: 10,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.17 : 18,460.02 = 7,708.90 : x
  2. Step 2: Convert to fraction form
    13,375.17/18,460.02 = 7,708.90/x
  3. Step 3: Cross multiply
    13,375.17x = 18,460.02 × 7,708.90
  4. Step 4: Simplify right side
    13,375.17x = 142,306,448.18
  5. Step 5: Solve for x
    x = 142,306,448.18/13,375.17
  6. Step 6: Final answer
    x = 10,639.60

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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.