Home / 12,948.55-19,455.65-12,077.84

Finding the Fourth Proportional to 12,948.55, 19,455.65 and 12,077.84

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Solution

The fourth proportional to 12,948.55, 19,455.65 and 12,077.84 is: 18,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948.55 : 19,455.65 = 12,077.84 : x
  2. Step 2: Convert to fraction form
    12,948.55/19,455.65 = 12,077.84/x
  3. Step 3: Cross multiply
    12,948.55x = 19,455.65 × 12,077.84
  4. Step 4: Simplify right side
    12,948.55x = 234,982,306.63
  5. Step 5: Solve for x
    x = 234,982,306.63/12,948.55
  6. Step 6: Final answer
    x = 18,147.39

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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.