Home / 10,218.69-15,330.47-3,554.21

Finding the Fourth Proportional to 10,218.69, 15,330.47 and 3,554.21

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Solution

The fourth proportional to 10,218.69, 15,330.47 and 3,554.21 is: 5,332.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.69 : 15,330.47 = 3,554.21 : x
  2. Step 2: Convert to fraction form
    10,218.69/15,330.47 = 3,554.21/x
  3. Step 3: Cross multiply
    10,218.69x = 15,330.47 × 3,554.21
  4. Step 4: Simplify right side
    10,218.69x = 54,487,730.33
  5. Step 5: Solve for x
    x = 54,487,730.33/10,218.69
  6. Step 6: Final answer
    x = 5,332.16

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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.