Home / 18,690.36-28,030.77-5,539.65

Finding the Fourth Proportional to 18,690.36, 28,030.77 and 5,539.65

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Solution

The fourth proportional to 18,690.36, 28,030.77 and 5,539.65 is: 8,308.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.36 : 28,030.77 = 5,539.65 : x
  2. Step 2: Convert to fraction form
    18,690.36/28,030.77 = 5,539.65/x
  3. Step 3: Cross multiply
    18,690.36x = 28,030.77 × 5,539.65
  4. Step 4: Simplify right side
    18,690.36x = 155,280,655.03
  5. Step 5: Solve for x
    x = 155,280,655.03/18,690.36
  6. Step 6: Final answer
    x = 8,308.06

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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.