Home / 15,460.79-21,334.67-9,087.62

Finding the Fourth Proportional to 15,460.79, 21,334.67 and 9,087.62

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Solution

The fourth proportional to 15,460.79, 21,334.67 and 9,087.62 is: 12,540.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.79 : 21,334.67 = 9,087.62 : x
  2. Step 2: Convert to fraction form
    15,460.79/21,334.67 = 9,087.62/x
  3. Step 3: Cross multiply
    15,460.79x = 21,334.67 × 9,087.62
  4. Step 4: Simplify right side
    15,460.79x = 193,881,221.67
  5. Step 5: Solve for x
    x = 193,881,221.67/15,460.79
  6. Step 6: Final answer
    x = 12,540.19

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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.