Home / 12,387.47-17,094.71-6,722.19

Finding the Fourth Proportional to 12,387.47, 17,094.71 and 6,722.19

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Solution

The fourth proportional to 12,387.47, 17,094.71 and 6,722.19 is: 9,276.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.47 : 17,094.71 = 6,722.19 : x
  2. Step 2: Convert to fraction form
    12,387.47/17,094.71 = 6,722.19/x
  3. Step 3: Cross multiply
    12,387.47x = 17,094.71 × 6,722.19
  4. Step 4: Simplify right side
    12,387.47x = 114,913,905.42
  5. Step 5: Solve for x
    x = 114,913,905.42/12,387.47
  6. Step 6: Final answer
    x = 9,276.63

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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.