Home / 12,397.17-18,578.90-6,842.25

Finding the Fourth Proportional to 12,397.17, 18,578.90 and 6,842.25

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Solution

The fourth proportional to 12,397.17, 18,578.90 and 6,842.25 is: 10,254.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.17 : 18,578.90 = 6,842.25 : x
  2. Step 2: Convert to fraction form
    12,397.17/18,578.90 = 6,842.25/x
  3. Step 3: Cross multiply
    12,397.17x = 18,578.90 × 6,842.25
  4. Step 4: Simplify right side
    12,397.17x = 127,121,444.31
  5. Step 5: Solve for x
    x = 127,121,444.31/12,397.17
  6. Step 6: Final answer
    x = 10,254.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.