Home / 10,085.12-15,128.76-4,244.48

Finding the Fourth Proportional to 10,085.12, 15,128.76 and 4,244.48

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Solution

The fourth proportional to 10,085.12, 15,128.76 and 4,244.48 is: 6,367.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.12 : 15,128.76 = 4,244.48 : x
  2. Step 2: Convert to fraction form
    10,085.12/15,128.76 = 4,244.48/x
  3. Step 3: Cross multiply
    10,085.12x = 15,128.76 × 4,244.48
  4. Step 4: Simplify right side
    10,085.12x = 64,213,719.24
  5. Step 5: Solve for x
    x = 64,213,719.24/10,085.12
  6. Step 6: Final answer
    x = 6,367.17

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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.