Home / 12,804.79-19,275.14-9,132.43

Finding the Fourth Proportional to 12,804.79, 19,275.14 and 9,132.43

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Solution

The fourth proportional to 12,804.79, 19,275.14 and 9,132.43 is: 13,747.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804.79 : 19,275.14 = 9,132.43 : x
  2. Step 2: Convert to fraction form
    12,804.79/19,275.14 = 9,132.43/x
  3. Step 3: Cross multiply
    12,804.79x = 19,275.14 × 9,132.43
  4. Step 4: Simplify right side
    12,804.79x = 176,028,866.79
  5. Step 5: Solve for x
    x = 176,028,866.79/12,804.79
  6. Step 6: Final answer
    x = 13,747.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.