Home / 10,779.35-16,168.98-2,988.14

Finding the Fourth Proportional to 10,779.35, 16,168.98 and 2,988.14

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Solution

The fourth proportional to 10,779.35, 16,168.98 and 2,988.14 is: 4,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.35 : 16,168.98 = 2,988.14 : x
  2. Step 2: Convert to fraction form
    10,779.35/16,168.98 = 2,988.14/x
  3. Step 3: Cross multiply
    10,779.35x = 16,168.98 × 2,988.14
  4. Step 4: Simplify right side
    10,779.35x = 48,315,175.90
  5. Step 5: Solve for x
    x = 48,315,175.90/10,779.35
  6. Step 6: Final answer
    x = 4,482.20

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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.