Home / 15,616.08-21,546.76-10,581.20

Finding the Fourth Proportional to 15,616.08, 21,546.76 and 10,581.20

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Solution

The fourth proportional to 15,616.08, 21,546.76 and 10,581.20 is: 14,599.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,616.08 : 21,546.76 = 10,581.20 : x
  2. Step 2: Convert to fraction form
    15,616.08/21,546.76 = 10,581.20/x
  3. Step 3: Cross multiply
    15,616.08x = 21,546.76 × 10,581.20
  4. Step 4: Simplify right side
    15,616.08x = 227,990,576.91
  5. Step 5: Solve for x
    x = 227,990,576.91/15,616.08
  6. Step 6: Final answer
    x = 14,599.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.