Home / 12,019.78-16,587.23-6,986.96

Finding the Fourth Proportional to 12,019.78, 16,587.23 and 6,986.96

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Solution

The fourth proportional to 12,019.78, 16,587.23 and 6,986.96 is: 9,641.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019.78 : 16,587.23 = 6,986.96 : x
  2. Step 2: Convert to fraction form
    12,019.78/16,587.23 = 6,986.96/x
  3. Step 3: Cross multiply
    12,019.78x = 16,587.23 × 6,986.96
  4. Step 4: Simplify right side
    12,019.78x = 115,894,312.52
  5. Step 5: Solve for x
    x = 115,894,312.52/12,019.78
  6. Step 6: Final answer
    x = 9,641.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.