Home / 12,590.53-18,960.74-10,966.69

Finding the Fourth Proportional to 12,590.53, 18,960.74 and 10,966.69

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Solution

The fourth proportional to 12,590.53, 18,960.74 and 10,966.69 is: 16,515.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.53 : 18,960.74 = 10,966.69 : x
  2. Step 2: Convert to fraction form
    12,590.53/18,960.74 = 10,966.69/x
  3. Step 3: Cross multiply
    12,590.53x = 18,960.74 × 10,966.69
  4. Step 4: Simplify right side
    12,590.53x = 207,936,462.95
  5. Step 5: Solve for x
    x = 207,936,462.95/12,590.53
  6. Step 6: Final answer
    x = 16,515.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.