Home / 8,810.41-13,220.40-5,115.30

Finding the Fourth Proportional to 8,810.41, 13,220.40 and 5,115.30

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Solution

The fourth proportional to 8,810.41, 13,220.40 and 5,115.30 is: 7,675.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,810.41 : 13,220.40 = 5,115.30 : x
  2. Step 2: Convert to fraction form
    8,810.41/13,220.40 = 5,115.30/x
  3. Step 3: Cross multiply
    8,810.41x = 13,220.40 × 5,115.30
  4. Step 4: Simplify right side
    8,810.41x = 67,626,246.02
  5. Step 5: Solve for x
    x = 67,626,246.02/8,810.41
  6. Step 6: Final answer
    x = 7,675.72

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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.