Home / 19,815.63-27,345.56-11,432.13

Finding the Fourth Proportional to 19,815.63, 27,345.56 and 11,432.13

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Solution

The fourth proportional to 19,815.63, 27,345.56 and 11,432.13 is: 15,776.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.63 : 27,345.56 = 11,432.13 : x
  2. Step 2: Convert to fraction form
    19,815.63/27,345.56 = 11,432.13/x
  3. Step 3: Cross multiply
    19,815.63x = 27,345.56 × 11,432.13
  4. Step 4: Simplify right side
    19,815.63x = 312,617,996.84
  5. Step 5: Solve for x
    x = 312,617,996.84/19,815.63
  6. Step 6: Final answer
    x = 15,776.33

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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.