Home / 12,876.56-19,317.11-4,561.40

Finding the Fourth Proportional to 12,876.56, 19,317.11 and 4,561.40

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Solution

The fourth proportional to 12,876.56, 19,317.11 and 4,561.40 is: 6,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.56 : 19,317.11 = 4,561.40 : x
  2. Step 2: Convert to fraction form
    12,876.56/19,317.11 = 4,561.40/x
  3. Step 3: Cross multiply
    12,876.56x = 19,317.11 × 4,561.40
  4. Step 4: Simplify right side
    12,876.56x = 88,112,946.16
  5. Step 5: Solve for x
    x = 88,112,946.16/12,876.56
  6. Step 6: Final answer
    x = 6,842.90

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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.