Home / 12,387.51-17,094.67-6,722.11

Finding the Fourth Proportional to 12,387.51, 17,094.67 and 6,722.11

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Solution

The fourth proportional to 12,387.51, 17,094.67 and 6,722.11 is: 9,276.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.51 : 17,094.67 = 6,722.11 : x
  2. Step 2: Convert to fraction form
    12,387.51/17,094.67 = 6,722.11/x
  3. Step 3: Cross multiply
    12,387.51x = 17,094.67 × 6,722.11
  4. Step 4: Simplify right side
    12,387.51x = 114,912,235.35
  5. Step 5: Solve for x
    x = 114,912,235.35/12,387.51
  6. Step 6: Final answer
    x = 9,276.46

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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.