Home / 7,515.25-10,363.74-6,776.93

Finding the Fourth Proportional to 7,515.25, 10,363.74 and 6,776.93

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Solution

The fourth proportional to 7,515.25, 10,363.74 and 6,776.93 is: 9,345.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.25 : 10,363.74 = 6,776.93 : x
  2. Step 2: Convert to fraction form
    7,515.25/10,363.74 = 6,776.93/x
  3. Step 3: Cross multiply
    7,515.25x = 10,363.74 × 6,776.93
  4. Step 4: Simplify right side
    7,515.25x = 70,234,340.52
  5. Step 5: Solve for x
    x = 70,234,340.52/7,515.25
  6. Step 6: Final answer
    x = 9,345.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.