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Finding the Fourth Proportional to 8,931, 12,324.78 and 4,952.73

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Solution

The fourth proportional to 8,931, 12,324.78 and 4,952.73 is: 6,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931 : 12,324.78 = 4,952.73 : x
  2. Step 2: Convert to fraction form
    8,931/12,324.78 = 4,952.73/x
  3. Step 3: Cross multiply
    8,931x = 12,324.78 × 4,952.73
  4. Step 4: Simplify right side
    8,931x = 61,041,307.65
  5. Step 5: Solve for x
    x = 61,041,307.65/8,931
  6. Step 6: Final answer
    x = 6,834.77

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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.