Home / 8,423.18-11,614.36-5,394.32

Finding the Fourth Proportional to 8,423.18, 11,614.36 and 5,394.32

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Solution

The fourth proportional to 8,423.18, 11,614.36 and 5,394.32 is: 7,438.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.18 : 11,614.36 = 5,394.32 : x
  2. Step 2: Convert to fraction form
    8,423.18/11,614.36 = 5,394.32/x
  3. Step 3: Cross multiply
    8,423.18x = 11,614.36 × 5,394.32
  4. Step 4: Simplify right side
    8,423.18x = 62,651,574.44
  5. Step 5: Solve for x
    x = 62,651,574.44/8,423.18
  6. Step 6: Final answer
    x = 7,438.00

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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.