Home / 15,343.24-21,144.18-10,919.56

Finding the Fourth Proportional to 15,343.24, 21,144.18 and 10,919.56

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Solution

The fourth proportional to 15,343.24, 21,144.18 and 10,919.56 is: 15,048.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.24 : 21,144.18 = 10,919.56 : x
  2. Step 2: Convert to fraction form
    15,343.24/21,144.18 = 10,919.56/x
  3. Step 3: Cross multiply
    15,343.24x = 21,144.18 × 10,919.56
  4. Step 4: Simplify right side
    15,343.24x = 230,885,142.16
  5. Step 5: Solve for x
    x = 230,885,142.16/15,343.24
  6. Step 6: Final answer
    x = 15,048.00

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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.