Home / 7,963.57-10,989.55-4,378.35

Finding the Fourth Proportional to 7,963.57, 10,989.55 and 4,378.35

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Solution

The fourth proportional to 7,963.57, 10,989.55 and 4,378.35 is: 6,042.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.57 : 10,989.55 = 4,378.35 : x
  2. Step 2: Convert to fraction form
    7,963.57/10,989.55 = 4,378.35/x
  3. Step 3: Cross multiply
    7,963.57x = 10,989.55 × 4,378.35
  4. Step 4: Simplify right side
    7,963.57x = 48,116,130.61
  5. Step 5: Solve for x
    x = 48,116,130.61/7,963.57
  6. Step 6: Final answer
    x = 6,042.03

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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.