Home / 15,915.29-23,872.86-7,144.07

Finding the Fourth Proportional to 15,915.29, 23,872.86 and 7,144.07

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Solution

The fourth proportional to 15,915.29, 23,872.86 and 7,144.07 is: 10,716.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915.29 : 23,872.86 = 7,144.07 : x
  2. Step 2: Convert to fraction form
    15,915.29/23,872.86 = 7,144.07/x
  3. Step 3: Cross multiply
    15,915.29x = 23,872.86 × 7,144.07
  4. Step 4: Simplify right side
    15,915.29x = 170,549,263.58
  5. Step 5: Solve for x
    x = 170,549,263.58/15,915.29
  6. Step 6: Final answer
    x = 10,716.07

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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.