Home / 12,531.81-17,292.99-6,865.65

Finding the Fourth Proportional to 12,531.81, 17,292.99 and 6,865.65

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Solution

The fourth proportional to 12,531.81, 17,292.99 and 6,865.65 is: 9,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.81 : 17,292.99 = 6,865.65 : x
  2. Step 2: Convert to fraction form
    12,531.81/17,292.99 = 6,865.65/x
  3. Step 3: Cross multiply
    12,531.81x = 17,292.99 × 6,865.65
  4. Step 4: Simplify right side
    12,531.81x = 118,727,616.79
  5. Step 5: Solve for x
    x = 118,727,616.79/12,531.81
  6. Step 6: Final answer
    x = 9,474.10

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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.