Home / 15,477.56-23,177.05-12,972.16

Finding the Fourth Proportional to 15,477.56, 23,177.05 and 12,972.16

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Solution

The fourth proportional to 15,477.56, 23,177.05 and 12,972.16 is: 19,425.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.56 : 23,177.05 = 12,972.16 : x
  2. Step 2: Convert to fraction form
    15,477.56/23,177.05 = 12,972.16/x
  3. Step 3: Cross multiply
    15,477.56x = 23,177.05 × 12,972.16
  4. Step 4: Simplify right side
    15,477.56x = 300,656,310.55
  5. Step 5: Solve for x
    x = 300,656,310.55/15,477.56
  6. Step 6: Final answer
    x = 19,425.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.