Home / 12,277.10-18,412.28-3,390.31

Finding the Fourth Proportional to 12,277.10, 18,412.28 and 3,390.31

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Solution

The fourth proportional to 12,277.10, 18,412.28 and 3,390.31 is: 5,084.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.10 : 18,412.28 = 3,390.31 : x
  2. Step 2: Convert to fraction form
    12,277.10/18,412.28 = 3,390.31/x
  3. Step 3: Cross multiply
    12,277.10x = 18,412.28 × 3,390.31
  4. Step 4: Simplify right side
    12,277.10x = 62,423,244.95
  5. Step 5: Solve for x
    x = 62,423,244.95/12,277.10
  6. Step 6: Final answer
    x = 5,084.53

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1.5x scale

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.