Home / 15,554.43-21,465.41-9,270.45

Finding the Fourth Proportional to 15,554.43, 21,465.41 and 9,270.45

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Solution

The fourth proportional to 15,554.43, 21,465.41 and 9,270.45 is: 12,793.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.43 : 21,465.41 = 9,270.45 : x
  2. Step 2: Convert to fraction form
    15,554.43/21,465.41 = 9,270.45/x
  3. Step 3: Cross multiply
    15,554.43x = 21,465.41 × 9,270.45
  4. Step 4: Simplify right side
    15,554.43x = 198,993,963.78
  5. Step 5: Solve for x
    x = 198,993,963.78/15,554.43
  6. Step 6: Final answer
    x = 12,793.39

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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.