Home / 10,290.20-15,443.11-6,779.01

Finding the Fourth Proportional to 10,290.20, 15,443.11 and 6,779.01

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Solution

The fourth proportional to 10,290.20, 15,443.11 and 6,779.01 is: 10,173.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.20 : 15,443.11 = 6,779.01 : x
  2. Step 2: Convert to fraction form
    10,290.20/15,443.11 = 6,779.01/x
  3. Step 3: Cross multiply
    10,290.20x = 15,443.11 × 6,779.01
  4. Step 4: Simplify right side
    10,290.20x = 104,688,997.12
  5. Step 5: Solve for x
    x = 104,688,997.12/10,290.20
  6. Step 6: Final answer
    x = 10,173.66

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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.