Home / 16,721.60-23,074.88-9,270.08

Finding the Fourth Proportional to 16,721.60, 23,074.88 and 9,270.08

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Solution

The fourth proportional to 16,721.60, 23,074.88 and 9,270.08 is: 12,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,721.60 : 23,074.88 = 9,270.08 : x
  2. Step 2: Convert to fraction form
    16,721.60/23,074.88 = 9,270.08/x
  3. Step 3: Cross multiply
    16,721.60x = 23,074.88 × 9,270.08
  4. Step 4: Simplify right side
    16,721.60x = 213,905,983.59
  5. Step 5: Solve for x
    x = 213,905,983.59/16,721.60
  6. Step 6: Final answer
    x = 12,792.20

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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.