Home / 12,397.86-17,097.48-11,125.35

Finding the Fourth Proportional to 12,397.86, 17,097.48 and 11,125.35

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Solution

The fourth proportional to 12,397.86, 17,097.48 and 11,125.35 is: 15,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.86 : 17,097.48 = 11,125.35 : x
  2. Step 2: Convert to fraction form
    12,397.86/17,097.48 = 11,125.35/x
  3. Step 3: Cross multiply
    12,397.86x = 17,097.48 × 11,125.35
  4. Step 4: Simplify right side
    12,397.86x = 190,215,449.12
  5. Step 5: Solve for x
    x = 190,215,449.12/12,397.86
  6. Step 6: Final answer
    x = 15,342.60

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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.