Home / 8,455.29-12,686.55-3,526.03

Finding the Fourth Proportional to 8,455.29, 12,686.55 and 3,526.03

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Solution

The fourth proportional to 8,455.29, 12,686.55 and 3,526.03 is: 5,290.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.29 : 12,686.55 = 3,526.03 : x
  2. Step 2: Convert to fraction form
    8,455.29/12,686.55 = 3,526.03/x
  3. Step 3: Cross multiply
    8,455.29x = 12,686.55 × 3,526.03
  4. Step 4: Simplify right side
    8,455.29x = 44,733,155.90
  5. Step 5: Solve for x
    x = 44,733,155.90/8,455.29
  6. Step 6: Final answer
    x = 5,290.55

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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.