Home / 8,284.85-12,426.93-5,645.76

Finding the Fourth Proportional to 8,284.85, 12,426.93 and 5,645.76

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Solution

The fourth proportional to 8,284.85, 12,426.93 and 5,645.76 is: 8,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,284.85 : 12,426.93 = 5,645.76 : x
  2. Step 2: Convert to fraction form
    8,284.85/12,426.93 = 5,645.76/x
  3. Step 3: Cross multiply
    8,284.85x = 12,426.93 × 5,645.76
  4. Step 4: Simplify right side
    8,284.85x = 70,159,436.79
  5. Step 5: Solve for x
    x = 70,159,436.79/8,284.85
  6. Step 6: Final answer
    x = 8,468.40

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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.