Home / 9,013.20-13,512.60-3,814.80

Finding the Fourth Proportional to 9,013.20, 13,512.60 and 3,814.80

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Solution

The fourth proportional to 9,013.20, 13,512.60 and 3,814.80 is: 5,719.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,013.20 : 13,512.60 = 3,814.80 : x
  2. Step 2: Convert to fraction form
    9,013.20/13,512.60 = 3,814.80/x
  3. Step 3: Cross multiply
    9,013.20x = 13,512.60 × 3,814.80
  4. Step 4: Simplify right side
    9,013.20x = 51,547,866.48
  5. Step 5: Solve for x
    x = 51,547,866.48/9,013.20
  6. Step 6: Final answer
    x = 5,719.15

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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.