Home / 8,924.49-12,315.60-4,945.65

Finding the Fourth Proportional to 8,924.49, 12,315.60 and 4,945.65

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Solution

The fourth proportional to 8,924.49, 12,315.60 and 4,945.65 is: 6,824.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,924.49 : 12,315.60 = 4,945.65 : x
  2. Step 2: Convert to fraction form
    8,924.49/12,315.60 = 4,945.65/x
  3. Step 3: Cross multiply
    8,924.49x = 12,315.60 × 4,945.65
  4. Step 4: Simplify right side
    8,924.49x = 60,908,647.14
  5. Step 5: Solve for x
    x = 60,908,647.14/8,924.49
  6. Step 6: Final answer
    x = 6,824.89

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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.