Home / 15,149.12-22,728.78-7,751.60

Finding the Fourth Proportional to 15,149.12, 22,728.78 and 7,751.60

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Solution

The fourth proportional to 15,149.12, 22,728.78 and 7,751.60 is: 11,630.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,149.12 : 22,728.78 = 7,751.60 : x
  2. Step 2: Convert to fraction form
    15,149.12/22,728.78 = 7,751.60/x
  3. Step 3: Cross multiply
    15,149.12x = 22,728.78 × 7,751.60
  4. Step 4: Simplify right side
    15,149.12x = 176,184,411.05
  5. Step 5: Solve for x
    x = 176,184,411.05/15,149.12
  6. Step 6: Final answer
    x = 11,630.01

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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.