Home / 13,052.90-18,008.70-7,387.08

Finding the Fourth Proportional to 13,052.90, 18,008.70 and 7,387.08

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Solution

The fourth proportional to 13,052.90, 18,008.70 and 7,387.08 is: 10,191.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,052.90 : 18,008.70 = 7,387.08 : x
  2. Step 2: Convert to fraction form
    13,052.90/18,008.70 = 7,387.08/x
  3. Step 3: Cross multiply
    13,052.90x = 18,008.70 × 7,387.08
  4. Step 4: Simplify right side
    13,052.90x = 133,031,707.60
  5. Step 5: Solve for x
    x = 133,031,707.60/13,052.90
  6. Step 6: Final answer
    x = 10,191.74

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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.