Home / 14,040.28-19,378.62-9,574.69

Finding the Fourth Proportional to 14,040.28, 19,378.62 and 9,574.69

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Solution

The fourth proportional to 14,040.28, 19,378.62 and 9,574.69 is: 13,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040.28 : 19,378.62 = 9,574.69 : x
  2. Step 2: Convert to fraction form
    14,040.28/19,378.62 = 9,574.69/x
  3. Step 3: Cross multiply
    14,040.28x = 19,378.62 × 9,574.69
  4. Step 4: Simplify right side
    14,040.28x = 185,544,279.13
  5. Step 5: Solve for x
    x = 185,544,279.13/14,040.28
  6. Step 6: Final answer
    x = 13,215.14

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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.