Home / 15,522.06-21,419.19-10,816.50

Finding the Fourth Proportional to 15,522.06, 21,419.19 and 10,816.50

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Solution

The fourth proportional to 15,522.06, 21,419.19 and 10,816.50 is: 14,925.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,522.06 : 21,419.19 = 10,816.50 : x
  2. Step 2: Convert to fraction form
    15,522.06/21,419.19 = 10,816.50/x
  3. Step 3: Cross multiply
    15,522.06x = 21,419.19 × 10,816.50
  4. Step 4: Simplify right side
    15,522.06x = 231,680,668.64
  5. Step 5: Solve for x
    x = 231,680,668.64/15,522.06
  6. Step 6: Final answer
    x = 14,925.90

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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.