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Finding the Fourth Proportional to 15,669, 23,504.72 and 5,280.75

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Solution

The fourth proportional to 15,669, 23,504.72 and 5,280.75 is: 7,921.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,669 : 23,504.72 = 5,280.75 : x
  2. Step 2: Convert to fraction form
    15,669/23,504.72 = 5,280.75/x
  3. Step 3: Cross multiply
    15,669x = 23,504.72 × 5,280.75
  4. Step 4: Simplify right side
    15,669x = 124,122,523.74
  5. Step 5: Solve for x
    x = 124,122,523.74/15,669
  6. Step 6: Final answer
    x = 7,921.53

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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.