Home / 8,921.85-12,312.82-4,943.33

Finding the Fourth Proportional to 8,921.85, 12,312.82 and 4,943.33

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Solution

The fourth proportional to 8,921.85, 12,312.82 and 4,943.33 is: 6,822.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.85 : 12,312.82 = 4,943.33 : x
  2. Step 2: Convert to fraction form
    8,921.85/12,312.82 = 4,943.33/x
  3. Step 3: Cross multiply
    8,921.85x = 12,312.82 × 4,943.33
  4. Step 4: Simplify right side
    8,921.85x = 60,866,332.49
  5. Step 5: Solve for x
    x = 60,866,332.49/8,921.85
  6. Step 6: Final answer
    x = 6,822.16

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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.