Home / 15,105.84-22,655.66-5,742.57

Finding the Fourth Proportional to 15,105.84, 22,655.66 and 5,742.57

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Solution

The fourth proportional to 15,105.84, 22,655.66 and 5,742.57 is: 8,612.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,105.84 : 22,655.66 = 5,742.57 : x
  2. Step 2: Convert to fraction form
    15,105.84/22,655.66 = 5,742.57/x
  3. Step 3: Cross multiply
    15,105.84x = 22,655.66 × 5,742.57
  4. Step 4: Simplify right side
    15,105.84x = 130,101,713.45
  5. Step 5: Solve for x
    x = 130,101,713.45/15,105.84
  6. Step 6: Final answer
    x = 8,612.68

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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.