Home / 15,133.32-20,878.23-9,388.11

Finding the Fourth Proportional to 15,133.32, 20,878.23 and 9,388.11

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Solution

The fourth proportional to 15,133.32, 20,878.23 and 9,388.11 is: 12,952.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,133.32 : 20,878.23 = 9,388.11 : x
  2. Step 2: Convert to fraction form
    15,133.32/20,878.23 = 9,388.11/x
  3. Step 3: Cross multiply
    15,133.32x = 20,878.23 × 9,388.11
  4. Step 4: Simplify right side
    15,133.32x = 196,007,119.85
  5. Step 5: Solve for x
    x = 196,007,119.85/15,133.32
  6. Step 6: Final answer
    x = 12,952.02

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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.