Home / 8,826.90-13,236.08-5,130.20

Finding the Fourth Proportional to 8,826.90, 13,236.08 and 5,130.20

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Solution

The fourth proportional to 8,826.90, 13,236.08 and 5,130.20 is: 7,692.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,826.90 : 13,236.08 = 5,130.20 : x
  2. Step 2: Convert to fraction form
    8,826.90/13,236.08 = 5,130.20/x
  3. Step 3: Cross multiply
    8,826.90x = 13,236.08 × 5,130.20
  4. Step 4: Simplify right side
    8,826.90x = 67,903,645.78
  5. Step 5: Solve for x
    x = 67,903,645.78/8,826.90
  6. Step 6: Final answer
    x = 7,692.81

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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.