Home / 7,490.10-11,215.35-6,002.40

Finding the Fourth Proportional to 7,490.10, 11,215.35 and 6,002.40

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Solution

The fourth proportional to 7,490.10, 11,215.35 and 6,002.40 is: 8,987.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.10 : 11,215.35 = 6,002.40 : x
  2. Step 2: Convert to fraction form
    7,490.10/11,215.35 = 6,002.40/x
  3. Step 3: Cross multiply
    7,490.10x = 11,215.35 × 6,002.40
  4. Step 4: Simplify right side
    7,490.10x = 67,319,016.84
  5. Step 5: Solve for x
    x = 67,319,016.84/7,490.10
  6. Step 6: Final answer
    x = 8,987.73

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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.