Home / 10,866.85-16,278.36-9,106.92

Finding the Fourth Proportional to 10,866.85, 16,278.36 and 9,106.92

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Solution

The fourth proportional to 10,866.85, 16,278.36 and 9,106.92 is: 13,642.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866.85 : 16,278.36 = 9,106.92 : x
  2. Step 2: Convert to fraction form
    10,866.85/16,278.36 = 9,106.92/x
  3. Step 3: Cross multiply
    10,866.85x = 16,278.36 × 9,106.92
  4. Step 4: Simplify right side
    10,866.85x = 148,245,722.25
  5. Step 5: Solve for x
    x = 148,245,722.25/10,866.85
  6. Step 6: Final answer
    x = 13,642.02

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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.