Home / 13,807.42-20,721.48-10,119.04

Finding the Fourth Proportional to 13,807.42, 20,721.48 and 10,119.04

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Solution

The fourth proportional to 13,807.42, 20,721.48 and 10,119.04 is: 15,186.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,807.42 : 20,721.48 = 10,119.04 : x
  2. Step 2: Convert to fraction form
    13,807.42/20,721.48 = 10,119.04/x
  3. Step 3: Cross multiply
    13,807.42x = 20,721.48 × 10,119.04
  4. Step 4: Simplify right side
    13,807.42x = 209,681,484.98
  5. Step 5: Solve for x
    x = 209,681,484.98/13,807.42
  6. Step 6: Final answer
    x = 15,186.15

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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.