Home / 16,825.40-23,220-9,557.72

Finding the Fourth Proportional to 16,825.40, 23,220 and 9,557.72

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Solution

The fourth proportional to 16,825.40, 23,220 and 9,557.72 is: 13,190.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,825.40 : 23,220 = 9,557.72 : x
  2. Step 2: Convert to fraction form
    16,825.40/23,220 = 9,557.72/x
  3. Step 3: Cross multiply
    16,825.40x = 23,220 × 9,557.72
  4. Step 4: Simplify right side
    16,825.40x = 221,930,258.40
  5. Step 5: Solve for x
    x = 221,930,258.40/16,825.40
  6. Step 6: Final answer
    x = 13,190.19

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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.