Home / 19,767.48-27,279.54-10,815.58

Finding the Fourth Proportional to 19,767.48, 27,279.54 and 10,815.58

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Solution

The fourth proportional to 19,767.48, 27,279.54 and 10,815.58 is: 14,925.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,767.48 : 27,279.54 = 10,815.58 : x
  2. Step 2: Convert to fraction form
    19,767.48/27,279.54 = 10,815.58/x
  3. Step 3: Cross multiply
    19,767.48x = 27,279.54 × 10,815.58
  4. Step 4: Simplify right side
    19,767.48x = 295,044,047.23
  5. Step 5: Solve for x
    x = 295,044,047.23/19,767.48
  6. Step 6: Final answer
    x = 14,925.73

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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.