Home / 13,907.80-19,217.05-10,947.15

Finding the Fourth Proportional to 13,907.80, 19,217.05 and 10,947.15

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Solution

The fourth proportional to 13,907.80, 19,217.05 and 10,947.15 is: 15,126.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.80 : 19,217.05 = 10,947.15 : x
  2. Step 2: Convert to fraction form
    13,907.80/19,217.05 = 10,947.15/x
  3. Step 3: Cross multiply
    13,907.80x = 19,217.05 × 10,947.15
  4. Step 4: Simplify right side
    13,907.80x = 210,371,901.54
  5. Step 5: Solve for x
    x = 210,371,901.54/13,907.80
  6. Step 6: Final answer
    x = 15,126.18

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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.