Home / 10,380.36-15,561.76-4,830.88

Finding the Fourth Proportional to 10,380.36, 15,561.76 and 4,830.88

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Solution

The fourth proportional to 10,380.36, 15,561.76 and 4,830.88 is: 7,242.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.36 : 15,561.76 = 4,830.88 : x
  2. Step 2: Convert to fraction form
    10,380.36/15,561.76 = 4,830.88/x
  3. Step 3: Cross multiply
    10,380.36x = 15,561.76 × 4,830.88
  4. Step 4: Simplify right side
    10,380.36x = 75,176,995.15
  5. Step 5: Solve for x
    x = 75,176,995.15/10,380.36
  6. Step 6: Final answer
    x = 7,242.23

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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.