Home / 15,158.32-20,919.54-9,190.24

Finding the Fourth Proportional to 15,158.32, 20,919.54 and 9,190.24

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Solution

The fourth proportional to 15,158.32, 20,919.54 and 9,190.24 is: 12,683.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,158.32 : 20,919.54 = 9,190.24 : x
  2. Step 2: Convert to fraction form
    15,158.32/20,919.54 = 9,190.24/x
  3. Step 3: Cross multiply
    15,158.32x = 20,919.54 × 9,190.24
  4. Step 4: Simplify right side
    15,158.32x = 192,255,593.29
  5. Step 5: Solve for x
    x = 192,255,593.29/15,158.32
  6. Step 6: Final answer
    x = 12,683.17

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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.