Home / 15,637.55-21,571.06-9,257.92

Finding the Fourth Proportional to 15,637.55, 21,571.06 and 9,257.92

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Solution

The fourth proportional to 15,637.55, 21,571.06 and 9,257.92 is: 12,770.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,637.55 : 21,571.06 = 9,257.92 : x
  2. Step 2: Convert to fraction form
    15,637.55/21,571.06 = 9,257.92/x
  3. Step 3: Cross multiply
    15,637.55x = 21,571.06 × 9,257.92
  4. Step 4: Simplify right side
    15,637.55x = 199,703,147.80
  5. Step 5: Solve for x
    x = 199,703,147.80/15,637.55
  6. Step 6: Final answer
    x = 12,770.74

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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.