Home / 15,612.78-23,400.67-7,275.54

Finding the Fourth Proportional to 15,612.78, 23,400.67 and 7,275.54

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Solution

The fourth proportional to 15,612.78, 23,400.67 and 7,275.54 is: 10,904.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.78 : 23,400.67 = 7,275.54 : x
  2. Step 2: Convert to fraction form
    15,612.78/23,400.67 = 7,275.54/x
  3. Step 3: Cross multiply
    15,612.78x = 23,400.67 × 7,275.54
  4. Step 4: Simplify right side
    15,612.78x = 170,252,510.61
  5. Step 5: Solve for x
    x = 170,252,510.61/15,612.78
  6. Step 6: Final answer
    x = 10,904.69

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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.