Home / 8,973.18-13,459.84-3,129.77

Finding the Fourth Proportional to 8,973.18, 13,459.84 and 3,129.77

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Solution

The fourth proportional to 8,973.18, 13,459.84 and 3,129.77 is: 4,694.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,973.18 : 13,459.84 = 3,129.77 : x
  2. Step 2: Convert to fraction form
    8,973.18/13,459.84 = 3,129.77/x
  3. Step 3: Cross multiply
    8,973.18x = 13,459.84 × 3,129.77
  4. Step 4: Simplify right side
    8,973.18x = 42,126,229.26
  5. Step 5: Solve for x
    x = 42,126,229.26/8,973.18
  6. Step 6: Final answer
    x = 4,694.68

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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.