Home / 10,639.58-15,948.08-5,081.18

Finding the Fourth Proportional to 10,639.58, 15,948.08 and 5,081.18

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Solution

The fourth proportional to 10,639.58, 15,948.08 and 5,081.18 is: 7,616.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.58 : 15,948.08 = 5,081.18 : x
  2. Step 2: Convert to fraction form
    10,639.58/15,948.08 = 5,081.18/x
  3. Step 3: Cross multiply
    10,639.58x = 15,948.08 × 5,081.18
  4. Step 4: Simplify right side
    10,639.58x = 81,034,959.99
  5. Step 5: Solve for x
    x = 81,034,959.99/10,639.58
  6. Step 6: Final answer
    x = 7,616.37

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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.