Home / 7,487.13-11,231.23-2,870.13

Finding the Fourth Proportional to 7,487.13, 11,231.23 and 2,870.13

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Solution

The fourth proportional to 7,487.13, 11,231.23 and 2,870.13 is: 4,305.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.13 : 11,231.23 = 2,870.13 : x
  2. Step 2: Convert to fraction form
    7,487.13/11,231.23 = 2,870.13/x
  3. Step 3: Cross multiply
    7,487.13x = 11,231.23 × 2,870.13
  4. Step 4: Simplify right side
    7,487.13x = 32,235,026.83
  5. Step 5: Solve for x
    x = 32,235,026.83/7,487.13
  6. Step 6: Final answer
    x = 4,305.39

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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.