Home / 8,319.76-12,475.98-4,423.28

Finding the Fourth Proportional to 8,319.76, 12,475.98 and 4,423.28

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Solution

The fourth proportional to 8,319.76, 12,475.98 and 4,423.28 is: 6,632.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.76 : 12,475.98 = 4,423.28 : x
  2. Step 2: Convert to fraction form
    8,319.76/12,475.98 = 4,423.28/x
  3. Step 3: Cross multiply
    8,319.76x = 12,475.98 × 4,423.28
  4. Step 4: Simplify right side
    8,319.76x = 55,184,752.81
  5. Step 5: Solve for x
    x = 55,184,752.81/8,319.76
  6. Step 6: Final answer
    x = 6,632.97

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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.