Home / 12,872,895.84-17,766,138.24-7,716,085.92

Finding the Fourth Proportional to 12,872,895.84, 17,766,138.24 and 7,716,085.92

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Solution

The fourth proportional to 12,872,895.84, 17,766,138.24 and 7,716,085.92 is: 10,649,122.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872,895.84 : 17,766,138.24 = 7,716,085.92 : x
  2. Step 2: Convert to fraction form
    12,872,895.84/17,766,138.24 = 7,716,085.92/x
  3. Step 3: Cross multiply
    12,872,895.84x = 17,766,138.24 × 7,716,085.92
  4. Step 4: Simplify right side
    12,872,895.84x = 137,085,049,126,437.56
  5. Step 5: Solve for x
    x = 137,085,049,126,437.56/12,872,895.84
  6. Step 6: Final answer
    x = 10,649,122.84

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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.