Home / 13,417.72-18,517.38-7,753.48

Finding the Fourth Proportional to 13,417.72, 18,517.38 and 7,753.48

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Solution

The fourth proportional to 13,417.72, 18,517.38 and 7,753.48 is: 10,700.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.72 : 18,517.38 = 7,753.48 : x
  2. Step 2: Convert to fraction form
    13,417.72/18,517.38 = 7,753.48/x
  3. Step 3: Cross multiply
    13,417.72x = 18,517.38 × 7,753.48
  4. Step 4: Simplify right side
    13,417.72x = 143,574,135.48
  5. Step 5: Solve for x
    x = 143,574,135.48/13,417.72
  6. Step 6: Final answer
    x = 10,700.34

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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.