Home / 15,436.42-23,155.68-7,643.14

Finding the Fourth Proportional to 15,436.42, 23,155.68 and 7,643.14

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Solution

The fourth proportional to 15,436.42, 23,155.68 and 7,643.14 is: 11,465.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436.42 : 23,155.68 = 7,643.14 : x
  2. Step 2: Convert to fraction form
    15,436.42/23,155.68 = 7,643.14/x
  3. Step 3: Cross multiply
    15,436.42x = 23,155.68 × 7,643.14
  4. Step 4: Simplify right side
    15,436.42x = 176,982,104.04
  5. Step 5: Solve for x
    x = 176,982,104.04/15,436.42
  6. Step 6: Final answer
    x = 11,465.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.