Home / 18,948.14-28,422.30-4,907.18

Finding the Fourth Proportional to 18,948.14, 28,422.30 and 4,907.18

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Solution

The fourth proportional to 18,948.14, 28,422.30 and 4,907.18 is: 7,360.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.14 : 28,422.30 = 4,907.18 : x
  2. Step 2: Convert to fraction form
    18,948.14/28,422.30 = 4,907.18/x
  3. Step 3: Cross multiply
    18,948.14x = 28,422.30 × 4,907.18
  4. Step 4: Simplify right side
    18,948.14x = 139,473,342.11
  5. Step 5: Solve for x
    x = 139,473,342.11/18,948.14
  6. Step 6: Final answer
    x = 7,360.79

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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.