Home / 15,175.29-20,938.26-9,206.79

Finding the Fourth Proportional to 15,175.29, 20,938.26 and 9,206.79

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Solution

The fourth proportional to 15,175.29, 20,938.26 and 9,206.79 is: 12,703.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,175.29 : 20,938.26 = 9,206.79 : x
  2. Step 2: Convert to fraction form
    15,175.29/20,938.26 = 9,206.79/x
  3. Step 3: Cross multiply
    15,175.29x = 20,938.26 × 9,206.79
  4. Step 4: Simplify right side
    15,175.29x = 192,774,162.79
  5. Step 5: Solve for x
    x = 192,774,162.79/15,175.29
  6. Step 6: Final answer
    x = 12,703.16

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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.