Home / 15,955.55-22,016.75-9,240.25

Finding the Fourth Proportional to 15,955.55, 22,016.75 and 9,240.25

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Solution

The fourth proportional to 15,955.55, 22,016.75 and 9,240.25 is: 12,750.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.55 : 22,016.75 = 9,240.25 : x
  2. Step 2: Convert to fraction form
    15,955.55/22,016.75 = 9,240.25/x
  3. Step 3: Cross multiply
    15,955.55x = 22,016.75 × 9,240.25
  4. Step 4: Simplify right side
    15,955.55x = 203,440,117.90
  5. Step 5: Solve for x
    x = 203,440,117.90/15,955.55
  6. Step 6: Final answer
    x = 12,750.43

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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.