Home / 10,332.44-15,486.30-4,778.20

Finding the Fourth Proportional to 10,332.44, 15,486.30 and 4,778.20

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Solution

The fourth proportional to 10,332.44, 15,486.30 and 4,778.20 is: 7,161.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,332.44 : 15,486.30 = 4,778.20 : x
  2. Step 2: Convert to fraction form
    10,332.44/15,486.30 = 4,778.20/x
  3. Step 3: Cross multiply
    10,332.44x = 15,486.30 × 4,778.20
  4. Step 4: Simplify right side
    10,332.44x = 73,996,638.66
  5. Step 5: Solve for x
    x = 73,996,638.66/10,332.44
  6. Step 6: Final answer
    x = 7,161.58

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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.