Home / 15,915.90-23,837.52-7,601.78

Finding the Fourth Proportional to 15,915.90, 23,837.52 and 7,601.78

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Solution

The fourth proportional to 15,915.90, 23,837.52 and 7,601.78 is: 11,385.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915.90 : 23,837.52 = 7,601.78 : x
  2. Step 2: Convert to fraction form
    15,915.90/23,837.52 = 7,601.78/x
  3. Step 3: Cross multiply
    15,915.90x = 23,837.52 × 7,601.78
  4. Step 4: Simplify right side
    15,915.90x = 181,207,582.79
  5. Step 5: Solve for x
    x = 181,207,582.79/15,915.90
  6. Step 6: Final answer
    x = 11,385.32

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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.