Home / 15,648.06-21,594.61-8,478.12

Finding the Fourth Proportional to 15,648.06, 21,594.61 and 8,478.12

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Solution

The fourth proportional to 15,648.06, 21,594.61 and 8,478.12 is: 11,699.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,648.06 : 21,594.61 = 8,478.12 : x
  2. Step 2: Convert to fraction form
    15,648.06/21,594.61 = 8,478.12/x
  3. Step 3: Cross multiply
    15,648.06x = 21,594.61 × 8,478.12
  4. Step 4: Simplify right side
    15,648.06x = 183,081,694.93
  5. Step 5: Solve for x
    x = 183,081,694.93/15,648.06
  6. Step 6: Final answer
    x = 11,699.96

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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.