Home / 12,876.39-19,316.21-4,554.45

Finding the Fourth Proportional to 12,876.39, 19,316.21 and 4,554.45

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Solution

The fourth proportional to 12,876.39, 19,316.21 and 4,554.45 is: 6,832.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.39 : 19,316.21 = 4,554.45 : x
  2. Step 2: Convert to fraction form
    12,876.39/19,316.21 = 4,554.45/x
  3. Step 3: Cross multiply
    12,876.39x = 19,316.21 × 4,554.45
  4. Step 4: Simplify right side
    12,876.39x = 87,974,689.86
  5. Step 5: Solve for x
    x = 87,974,689.86/12,876.39
  6. Step 6: Final answer
    x = 6,832.25

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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.