Home / 13,565.88-18,721.62-7,597.20

Finding the Fourth Proportional to 13,565.88, 18,721.62 and 7,597.20

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Solution

The fourth proportional to 13,565.88, 18,721.62 and 7,597.20 is: 10,484.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.88 : 18,721.62 = 7,597.20 : x
  2. Step 2: Convert to fraction form
    13,565.88/18,721.62 = 7,597.20/x
  3. Step 3: Cross multiply
    13,565.88x = 18,721.62 × 7,597.20
  4. Step 4: Simplify right side
    13,565.88x = 142,231,891.46
  5. Step 5: Solve for x
    x = 142,231,891.46/13,565.88
  6. Step 6: Final answer
    x = 10,484.53

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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.