Home / 10,614.24-15,921.36-5,423.76

Finding the Fourth Proportional to 10,614.24, 15,921.36 and 5,423.76

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Solution

The fourth proportional to 10,614.24, 15,921.36 and 5,423.76 is: 8,135.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,614.24 : 15,921.36 = 5,423.76 : x
  2. Step 2: Convert to fraction form
    10,614.24/15,921.36 = 5,423.76/x
  3. Step 3: Cross multiply
    10,614.24x = 15,921.36 × 5,423.76
  4. Step 4: Simplify right side
    10,614.24x = 86,353,635.51
  5. Step 5: Solve for x
    x = 86,353,635.51/10,614.24
  6. Step 6: Final answer
    x = 8,135.64

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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.