Home / 10,656.22-15,954.16-5,647.20

Finding the Fourth Proportional to 10,656.22, 15,954.16 and 5,647.20

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Solution

The fourth proportional to 10,656.22, 15,954.16 and 5,647.20 is: 8,454.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.22 : 15,954.16 = 5,647.20 : x
  2. Step 2: Convert to fraction form
    10,656.22/15,954.16 = 5,647.20/x
  3. Step 3: Cross multiply
    10,656.22x = 15,954.16 × 5,647.20
  4. Step 4: Simplify right side
    10,656.22x = 90,096,332.35
  5. Step 5: Solve for x
    x = 90,096,332.35/10,656.22
  6. Step 6: Final answer
    x = 8,454.81

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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.