Home / 15,720.08-23,578.68-5,330.64

Finding the Fourth Proportional to 15,720.08, 23,578.68 and 5,330.64

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Solution

The fourth proportional to 15,720.08, 23,578.68 and 5,330.64 is: 7,995.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,720.08 : 23,578.68 = 5,330.64 : x
  2. Step 2: Convert to fraction form
    15,720.08/23,578.68 = 5,330.64/x
  3. Step 3: Cross multiply
    15,720.08x = 23,578.68 × 5,330.64
  4. Step 4: Simplify right side
    15,720.08x = 125,689,454.76
  5. Step 5: Solve for x
    x = 125,689,454.76/15,720.08
  6. Step 6: Final answer
    x = 7,995.47

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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.