Home / 9,557.91-13,190.63-5,781.21

Finding the Fourth Proportional to 9,557.91, 13,190.63 and 5,781.21

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Solution

The fourth proportional to 9,557.91, 13,190.63 and 5,781.21 is: 7,978.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,557.91 : 13,190.63 = 5,781.21 : x
  2. Step 2: Convert to fraction form
    9,557.91/13,190.63 = 5,781.21/x
  3. Step 3: Cross multiply
    9,557.91x = 13,190.63 × 5,781.21
  4. Step 4: Simplify right side
    9,557.91x = 76,257,773.16
  5. Step 5: Solve for x
    x = 76,257,773.16/9,557.91
  6. Step 6: Final answer
    x = 7,978.50

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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.