Home / 8,923.95-12,315.12-4,945.11

Finding the Fourth Proportional to 8,923.95, 12,315.12 and 4,945.11

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Solution

The fourth proportional to 8,923.95, 12,315.12 and 4,945.11 is: 6,824.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,923.95 : 12,315.12 = 4,945.11 : x
  2. Step 2: Convert to fraction form
    8,923.95/12,315.12 = 4,945.11/x
  3. Step 3: Cross multiply
    8,923.95x = 12,315.12 × 4,945.11
  4. Step 4: Simplify right side
    8,923.95x = 60,899,623.06
  5. Step 5: Solve for x
    x = 60,899,623.06/8,923.95
  6. Step 6: Final answer
    x = 6,824.29

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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.