Home / 18,947.49-28,426.80-9,095.06

Finding the Fourth Proportional to 18,947.49, 28,426.80 and 9,095.06

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Solution

The fourth proportional to 18,947.49, 28,426.80 and 9,095.06 is: 13,645.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.49 : 28,426.80 = 9,095.06 : x
  2. Step 2: Convert to fraction form
    18,947.49/28,426.80 = 9,095.06/x
  3. Step 3: Cross multiply
    18,947.49x = 28,426.80 × 9,095.06
  4. Step 4: Simplify right side
    18,947.49x = 258,543,309.47
  5. Step 5: Solve for x
    x = 258,543,309.47/18,947.49
  6. Step 6: Final answer
    x = 13,645.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.