Home / 10,779.39-16,169.36-2,988.27

Finding the Fourth Proportional to 10,779.39, 16,169.36 and 2,988.27

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Solution

The fourth proportional to 10,779.39, 16,169.36 and 2,988.27 is: 4,482.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.39 : 16,169.36 = 2,988.27 : x
  2. Step 2: Convert to fraction form
    10,779.39/16,169.36 = 2,988.27/x
  3. Step 3: Cross multiply
    10,779.39x = 16,169.36 × 2,988.27
  4. Step 4: Simplify right side
    10,779.39x = 48,318,398.47
  5. Step 5: Solve for x
    x = 48,318,398.47/10,779.39
  6. Step 6: Final answer
    x = 4,482.48

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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.