Home / 13,627.17-18,803.39-7,657.70

Finding the Fourth Proportional to 13,627.17, 18,803.39 and 7,657.70

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Solution

The fourth proportional to 13,627.17, 18,803.39 and 7,657.70 is: 10,566.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,627.17 : 18,803.39 = 7,657.70 : x
  2. Step 2: Convert to fraction form
    13,627.17/18,803.39 = 7,657.70/x
  3. Step 3: Cross multiply
    13,627.17x = 18,803.39 × 7,657.70
  4. Step 4: Simplify right side
    13,627.17x = 143,990,587.30
  5. Step 5: Solve for x
    x = 143,990,587.30/13,627.17
  6. Step 6: Final answer
    x = 10,566.43

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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.