Home / 7,327.86-10,987.38-4,990.74

Finding the Fourth Proportional to 7,327.86, 10,987.38 and 4,990.74

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Solution

The fourth proportional to 7,327.86, 10,987.38 and 4,990.74 is: 7,483.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,327.86 : 10,987.38 = 4,990.74 : x
  2. Step 2: Convert to fraction form
    7,327.86/10,987.38 = 4,990.74/x
  3. Step 3: Cross multiply
    7,327.86x = 10,987.38 × 4,990.74
  4. Step 4: Simplify right side
    7,327.86x = 54,835,156.86
  5. Step 5: Solve for x
    x = 54,835,156.86/7,327.86
  6. Step 6: Final answer
    x = 7,483.11

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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.