Home / 19,715.78-27,208.19-10,763.66

Finding the Fourth Proportional to 19,715.78, 27,208.19 and 10,763.66

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Solution

The fourth proportional to 19,715.78, 27,208.19 and 10,763.66 is: 14,854.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.78 : 27,208.19 = 10,763.66 : x
  2. Step 2: Convert to fraction form
    19,715.78/27,208.19 = 10,763.66/x
  3. Step 3: Cross multiply
    19,715.78x = 27,208.19 × 10,763.66
  4. Step 4: Simplify right side
    19,715.78x = 292,859,597.24
  5. Step 5: Solve for x
    x = 292,859,597.24/19,715.78
  6. Step 6: Final answer
    x = 14,854.07

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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.