Home / 14,754.24-20,357.28-9,161.28

Finding the Fourth Proportional to 14,754.24, 20,357.28 and 9,161.28

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Solution

The fourth proportional to 14,754.24, 20,357.28 and 9,161.28 is: 12,640.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,754.24 : 20,357.28 = 9,161.28 : x
  2. Step 2: Convert to fraction form
    14,754.24/20,357.28 = 9,161.28/x
  3. Step 3: Cross multiply
    14,754.24x = 20,357.28 × 9,161.28
  4. Step 4: Simplify right side
    14,754.24x = 186,498,742.12
  5. Step 5: Solve for x
    x = 186,498,742.12/14,754.24
  6. Step 6: Final answer
    x = 12,640.35

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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.