Home / 15,370.54-21,212.94-9,406.18

Finding the Fourth Proportional to 15,370.54, 21,212.94 and 9,406.18

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Solution

The fourth proportional to 15,370.54, 21,212.94 and 9,406.18 is: 12,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.54 : 21,212.94 = 9,406.18 : x
  2. Step 2: Convert to fraction form
    15,370.54/21,212.94 = 9,406.18/x
  3. Step 3: Cross multiply
    15,370.54x = 21,212.94 × 9,406.18
  4. Step 4: Simplify right side
    15,370.54x = 199,532,731.97
  5. Step 5: Solve for x
    x = 199,532,731.97/15,370.54
  6. Step 6: Final answer
    x = 12,981.50

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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.