Home / 18,866.28-28,296.34-6,386.06

Finding the Fourth Proportional to 18,866.28, 28,296.34 and 6,386.06

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Solution

The fourth proportional to 18,866.28, 28,296.34 and 6,386.06 is: 9,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.28 : 28,296.34 = 6,386.06 : x
  2. Step 2: Convert to fraction form
    18,866.28/28,296.34 = 6,386.06/x
  3. Step 3: Cross multiply
    18,866.28x = 28,296.34 × 6,386.06
  4. Step 4: Simplify right side
    18,866.28x = 180,702,125.02
  5. Step 5: Solve for x
    x = 180,702,125.02/18,866.28
  6. Step 6: Final answer
    x = 9,578.05

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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.