Home / 12,143.95-16,758.32-6,838.65

Finding the Fourth Proportional to 12,143.95, 16,758.32 and 6,838.65

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Solution

The fourth proportional to 12,143.95, 16,758.32 and 6,838.65 is: 9,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143.95 : 16,758.32 = 6,838.65 : x
  2. Step 2: Convert to fraction form
    12,143.95/16,758.32 = 6,838.65/x
  3. Step 3: Cross multiply
    12,143.95x = 16,758.32 × 6,838.65
  4. Step 4: Simplify right side
    12,143.95x = 114,604,250.87
  5. Step 5: Solve for x
    x = 114,604,250.87/12,143.95
  6. Step 6: Final answer
    x = 9,437.15

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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.