Home / 18,769.80-25,901.12-10,386.28

Finding the Fourth Proportional to 18,769.80, 25,901.12 and 10,386.28

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Solution

The fourth proportional to 18,769.80, 25,901.12 and 10,386.28 is: 14,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.80 : 25,901.12 = 10,386.28 : x
  2. Step 2: Convert to fraction form
    18,769.80/25,901.12 = 10,386.28/x
  3. Step 3: Cross multiply
    18,769.80x = 25,901.12 × 10,386.28
  4. Step 4: Simplify right side
    18,769.80x = 269,016,284.63
  5. Step 5: Solve for x
    x = 269,016,284.63/18,769.80
  6. Step 6: Final answer
    x = 14,332.40

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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.