Home / 19,945.04-27,508.41-12,387.06

Finding the Fourth Proportional to 19,945.04, 27,508.41 and 12,387.06

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Solution

The fourth proportional to 19,945.04, 27,508.41 and 12,387.06 is: 17,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,945.04 : 27,508.41 = 12,387.06 : x
  2. Step 2: Convert to fraction form
    19,945.04/27,508.41 = 12,387.06/x
  3. Step 3: Cross multiply
    19,945.04x = 27,508.41 × 12,387.06
  4. Step 4: Simplify right side
    19,945.04x = 340,748,325.17
  5. Step 5: Solve for x
    x = 340,748,325.17/19,945.04
  6. Step 6: Final answer
    x = 17,084.37

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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.