Home / 7,126.40-10,674.96-4,779.20

Finding the Fourth Proportional to 7,126.40, 10,674.96 and 4,779.20

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Solution

The fourth proportional to 7,126.40, 10,674.96 and 4,779.20 is: 7,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.40 : 10,674.96 = 4,779.20 : x
  2. Step 2: Convert to fraction form
    7,126.40/10,674.96 = 4,779.20/x
  3. Step 3: Cross multiply
    7,126.40x = 10,674.96 × 4,779.20
  4. Step 4: Simplify right side
    7,126.40x = 51,017,768.83
  5. Step 5: Solve for x
    x = 51,017,768.83/7,126.40
  6. Step 6: Final answer
    x = 7,158.98

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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.