Home / 15,628.73-21,577.71-13,947.25

Finding the Fourth Proportional to 15,628.73, 21,577.71 and 13,947.25

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Solution

The fourth proportional to 15,628.73, 21,577.71 and 13,947.25 is: 19,256.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.73 : 21,577.71 = 13,947.25 : x
  2. Step 2: Convert to fraction form
    15,628.73/21,577.71 = 13,947.25/x
  3. Step 3: Cross multiply
    15,628.73x = 21,577.71 × 13,947.25
  4. Step 4: Simplify right side
    15,628.73x = 300,949,715.80
  5. Step 5: Solve for x
    x = 300,949,715.80/15,628.73
  6. Step 6: Final answer
    x = 19,256.18

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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.