Home / 8,897.28-12,278.23-4,918.39

Finding the Fourth Proportional to 8,897.28, 12,278.23 and 4,918.39

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Solution

The fourth proportional to 8,897.28, 12,278.23 and 4,918.39 is: 6,787.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,897.28 : 12,278.23 = 4,918.39 : x
  2. Step 2: Convert to fraction form
    8,897.28/12,278.23 = 4,918.39/x
  3. Step 3: Cross multiply
    8,897.28x = 12,278.23 × 4,918.39
  4. Step 4: Simplify right side
    8,897.28x = 60,389,123.65
  5. Step 5: Solve for x
    x = 60,389,123.65/8,897.28
  6. Step 6: Final answer
    x = 6,787.37

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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.