Home / 15,367.20-21,206.16-8,653.08

Finding the Fourth Proportional to 15,367.20, 21,206.16 and 8,653.08

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Solution

The fourth proportional to 15,367.20, 21,206.16 and 8,653.08 is: 11,940.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,367.20 : 21,206.16 = 8,653.08 : x
  2. Step 2: Convert to fraction form
    15,367.20/21,206.16 = 8,653.08/x
  3. Step 3: Cross multiply
    15,367.20x = 21,206.16 × 8,653.08
  4. Step 4: Simplify right side
    15,367.20x = 183,498,598.97
  5. Step 5: Solve for x
    x = 183,498,598.97/15,367.20
  6. Step 6: Final answer
    x = 11,940.93

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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.