Home / 12,877.42-19,324.79-4,557.40

Finding the Fourth Proportional to 12,877.42, 19,324.79 and 4,557.40

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Solution

The fourth proportional to 12,877.42, 19,324.79 and 4,557.40 is: 6,839.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.42 : 19,324.79 = 4,557.40 : x
  2. Step 2: Convert to fraction form
    12,877.42/19,324.79 = 4,557.40/x
  3. Step 3: Cross multiply
    12,877.42x = 19,324.79 × 4,557.40
  4. Step 4: Simplify right side
    12,877.42x = 88,070,775.16
  5. Step 5: Solve for x
    x = 88,070,775.16/12,877.42
  6. Step 6: Final answer
    x = 6,839.16

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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.