Home / 7,615.91-11,426.90-2,686.05

Finding the Fourth Proportional to 7,615.91, 11,426.90 and 2,686.05

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Solution

The fourth proportional to 7,615.91, 11,426.90 and 2,686.05 is: 4,030.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.91 : 11,426.90 = 2,686.05 : x
  2. Step 2: Convert to fraction form
    7,615.91/11,426.90 = 2,686.05/x
  3. Step 3: Cross multiply
    7,615.91x = 11,426.90 × 2,686.05
  4. Step 4: Simplify right side
    7,615.91x = 30,693,211.31
  5. Step 5: Solve for x
    x = 30,693,211.31/7,615.91
  6. Step 6: Final answer
    x = 4,030.15

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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.