Home / 10,018.40-13,825.28-5,542.16

Finding the Fourth Proportional to 10,018.40, 13,825.28 and 5,542.16

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Solution

The fourth proportional to 10,018.40, 13,825.28 and 5,542.16 is: 7,648.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,018.40 : 13,825.28 = 5,542.16 : x
  2. Step 2: Convert to fraction form
    10,018.40/13,825.28 = 5,542.16/x
  3. Step 3: Cross multiply
    10,018.40x = 13,825.28 × 5,542.16
  4. Step 4: Simplify right side
    10,018.40x = 76,621,913.80
  5. Step 5: Solve for x
    x = 76,621,913.80/10,018.40
  6. Step 6: Final answer
    x = 7,648.12

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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.