Home / 15,257.28-21,059.16-8,973.84

Finding the Fourth Proportional to 15,257.28, 21,059.16 and 8,973.84

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Solution

The fourth proportional to 15,257.28, 21,059.16 and 8,973.84 is: 12,386.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,257.28 : 21,059.16 = 8,973.84 : x
  2. Step 2: Convert to fraction form
    15,257.28/21,059.16 = 8,973.84/x
  3. Step 3: Cross multiply
    15,257.28x = 21,059.16 × 8,973.84
  4. Step 4: Simplify right side
    15,257.28x = 188,981,532.37
  5. Step 5: Solve for x
    x = 188,981,532.37/15,257.28
  6. Step 6: Final answer
    x = 12,386.32

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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.