Home / 12,378.17-17,088.50-9,560.12

Finding the Fourth Proportional to 12,378.17, 17,088.50 and 9,560.12

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Solution

The fourth proportional to 12,378.17, 17,088.50 and 9,560.12 is: 13,198.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378.17 : 17,088.50 = 9,560.12 : x
  2. Step 2: Convert to fraction form
    12,378.17/17,088.50 = 9,560.12/x
  3. Step 3: Cross multiply
    12,378.17x = 17,088.50 × 9,560.12
  4. Step 4: Simplify right side
    12,378.17x = 163,368,110.62
  5. Step 5: Solve for x
    x = 163,368,110.62/12,378.17
  6. Step 6: Final answer
    x = 13,198.08

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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.