Home / 12,387.39-17,094.48-6,722.13

Finding the Fourth Proportional to 12,387.39, 17,094.48 and 6,722.13

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Solution

The fourth proportional to 12,387.39, 17,094.48 and 6,722.13 is: 9,276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.39 : 17,094.48 = 6,722.13 : x
  2. Step 2: Convert to fraction form
    12,387.39/17,094.48 = 6,722.13/x
  3. Step 3: Cross multiply
    12,387.39x = 17,094.48 × 6,722.13
  4. Step 4: Simplify right side
    12,387.39x = 114,911,316.84
  5. Step 5: Solve for x
    x = 114,911,316.84/12,387.39
  6. Step 6: Final answer
    x = 9,276.48

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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.