Home / 10,779.12-16,169.56-2,987.93

Finding the Fourth Proportional to 10,779.12, 16,169.56 and 2,987.93

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Solution

The fourth proportional to 10,779.12, 16,169.56 and 2,987.93 is: 4,482.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.12 : 16,169.56 = 2,987.93 : x
  2. Step 2: Convert to fraction form
    10,779.12/16,169.56 = 2,987.93/x
  3. Step 3: Cross multiply
    10,779.12x = 16,169.56 × 2,987.93
  4. Step 4: Simplify right side
    10,779.12x = 48,313,546.36
  5. Step 5: Solve for x
    x = 48,313,546.36/10,779.12
  6. Step 6: Final answer
    x = 4,482.14

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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.