Home / 8,219.18-11,329.13-6,423.50

Finding the Fourth Proportional to 8,219.18, 11,329.13 and 6,423.50

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Solution

The fourth proportional to 8,219.18, 11,329.13 and 6,423.50 is: 8,854.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.18 : 11,329.13 = 6,423.50 : x
  2. Step 2: Convert to fraction form
    8,219.18/11,329.13 = 6,423.50/x
  3. Step 3: Cross multiply
    8,219.18x = 11,329.13 × 6,423.50
  4. Step 4: Simplify right side
    8,219.18x = 72,772,666.56
  5. Step 5: Solve for x
    x = 72,772,666.56/8,219.18
  6. Step 6: Final answer
    x = 8,854.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.