Home / 15,522.73-21,421.83-9,557.84

Finding the Fourth Proportional to 15,522.73, 21,421.83 and 9,557.84

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Solution

The fourth proportional to 15,522.73, 21,421.83 and 9,557.84 is: 13,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,522.73 : 21,421.83 = 9,557.84 : x
  2. Step 2: Convert to fraction form
    15,522.73/21,421.83 = 9,557.84/x
  3. Step 3: Cross multiply
    15,522.73x = 21,421.83 × 9,557.84
  4. Step 4: Simplify right side
    15,522.73x = 204,746,423.65
  5. Step 5: Solve for x
    x = 204,746,423.65/15,522.73
  6. Step 6: Final answer
    x = 13,190.10

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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.