Home / 13,272.62-18,316.28-7,607.70

Finding the Fourth Proportional to 13,272.62, 18,316.28 and 7,607.70

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Solution

The fourth proportional to 13,272.62, 18,316.28 and 7,607.70 is: 10,498.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.62 : 18,316.28 = 7,607.70 : x
  2. Step 2: Convert to fraction form
    13,272.62/18,316.28 = 7,607.70/x
  3. Step 3: Cross multiply
    13,272.62x = 18,316.28 × 7,607.70
  4. Step 4: Simplify right side
    13,272.62x = 139,344,725.32
  5. Step 5: Solve for x
    x = 139,344,725.32/13,272.62
  6. Step 6: Final answer
    x = 10,498.66

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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.