Home / 7,378.18-10,182.12-4,021.10

Finding the Fourth Proportional to 7,378.18, 10,182.12 and 4,021.10

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Solution

The fourth proportional to 7,378.18, 10,182.12 and 4,021.10 is: 5,549.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.18 : 10,182.12 = 4,021.10 : x
  2. Step 2: Convert to fraction form
    7,378.18/10,182.12 = 4,021.10/x
  3. Step 3: Cross multiply
    7,378.18x = 10,182.12 × 4,021.10
  4. Step 4: Simplify right side
    7,378.18x = 40,943,322.73
  5. Step 5: Solve for x
    x = 40,943,322.73/7,378.18
  6. Step 6: Final answer
    x = 5,549.24

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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.