Home / 10,172.88-15,255-4,624.56

Finding the Fourth Proportional to 10,172.88, 15,255 and 4,624.56

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Solution

The fourth proportional to 10,172.88, 15,255 and 4,624.56 is: 6,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,172.88 : 15,255 = 4,624.56 : x
  2. Step 2: Convert to fraction form
    10,172.88/15,255 = 4,624.56/x
  3. Step 3: Cross multiply
    10,172.88x = 15,255 × 4,624.56
  4. Step 4: Simplify right side
    10,172.88x = 70,547,662.80
  5. Step 5: Solve for x
    x = 70,547,662.80/10,172.88
  6. Step 6: Final answer
    x = 6,934.88

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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.