Home / 7,767.90-10,715.49-4,623.48

Finding the Fourth Proportional to 7,767.90, 10,715.49 and 4,623.48

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Solution

The fourth proportional to 7,767.90, 10,715.49 and 4,623.48 is: 6,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.90 : 10,715.49 = 4,623.48 : x
  2. Step 2: Convert to fraction form
    7,767.90/10,715.49 = 4,623.48/x
  3. Step 3: Cross multiply
    7,767.90x = 10,715.49 × 4,623.48
  4. Step 4: Simplify right side
    7,767.90x = 49,542,853.71
  5. Step 5: Solve for x
    x = 49,542,853.71/7,767.90
  6. Step 6: Final answer
    x = 6,377.90

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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.