Home / 19,899.89-27,462.28-10,947.40

Finding the Fourth Proportional to 19,899.89, 27,462.28 and 10,947.40

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Solution

The fourth proportional to 19,899.89, 27,462.28 and 10,947.40 is: 15,107.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,899.89 : 27,462.28 = 10,947.40 : x
  2. Step 2: Convert to fraction form
    19,899.89/27,462.28 = 10,947.40/x
  3. Step 3: Cross multiply
    19,899.89x = 27,462.28 × 10,947.40
  4. Step 4: Simplify right side
    19,899.89x = 300,640,564.07
  5. Step 5: Solve for x
    x = 300,640,564.07/19,899.89
  6. Step 6: Final answer
    x = 15,107.65

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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.