Home / 8,318.19-11,478.91-4,541.21

Finding the Fourth Proportional to 8,318.19, 11,478.91 and 4,541.21

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Solution

The fourth proportional to 8,318.19, 11,478.91 and 4,541.21 is: 6,266.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.19 : 11,478.91 = 4,541.21 : x
  2. Step 2: Convert to fraction form
    8,318.19/11,478.91 = 4,541.21/x
  3. Step 3: Cross multiply
    8,318.19x = 11,478.91 × 4,541.21
  4. Step 4: Simplify right side
    8,318.19x = 52,128,089.16
  5. Step 5: Solve for x
    x = 52,128,089.16/8,318.19
  6. Step 6: Final answer
    x = 6,266.76

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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.