Home / 12,109,423.57-16,693,640.80-9,526,618.69

Finding the Fourth Proportional to 12,109,423.57, 16,693,640.80 and 9,526,618.69

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Solution

The fourth proportional to 12,109,423.57, 16,693,640.80 and 9,526,618.69 is: 13,133,073.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,423.57 : 16,693,640.80 = 9,526,618.69 : x
  2. Step 2: Convert to fraction form
    12,109,423.57/16,693,640.80 = 9,526,618.69/x
  3. Step 3: Cross multiply
    12,109,423.57x = 16,693,640.80 × 9,526,618.69
  4. Step 4: Simplify right side
    12,109,423.57x = 159,033,950,449,426.56
  5. Step 5: Solve for x
    x = 159,033,950,449,426.56/12,109,423.57
  6. Step 6: Final answer
    x = 13,133,073.55

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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.