Home / 19,320.75-26,662.91-11,254.20

Finding the Fourth Proportional to 19,320.75, 26,662.91 and 11,254.20

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Solution

The fourth proportional to 19,320.75, 26,662.91 and 11,254.20 is: 15,530.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.75 : 26,662.91 = 11,254.20 : x
  2. Step 2: Convert to fraction form
    19,320.75/26,662.91 = 11,254.20/x
  3. Step 3: Cross multiply
    19,320.75x = 26,662.91 × 11,254.20
  4. Step 4: Simplify right side
    19,320.75x = 300,069,532.14
  5. Step 5: Solve for x
    x = 300,069,532.14/19,320.75
  6. Step 6: Final answer
    x = 15,530.95

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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.