Home / 12,169.04-16,778.06-10,155.35

Finding the Fourth Proportional to 12,169.04, 16,778.06 and 10,155.35

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Solution

The fourth proportional to 12,169.04, 16,778.06 and 10,155.35 is: 14,001.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.04 : 16,778.06 = 10,155.35 : x
  2. Step 2: Convert to fraction form
    12,169.04/16,778.06 = 10,155.35/x
  3. Step 3: Cross multiply
    12,169.04x = 16,778.06 × 10,155.35
  4. Step 4: Simplify right side
    12,169.04x = 170,387,071.62
  5. Step 5: Solve for x
    x = 170,387,071.62/12,169.04
  6. Step 6: Final answer
    x = 14,001.69

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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.