Home / 18,690.16-28,030.46-5,539.46

Finding the Fourth Proportional to 18,690.16, 28,030.46 and 5,539.46

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Solution

The fourth proportional to 18,690.16, 28,030.46 and 5,539.46 is: 8,307.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.16 : 28,030.46 = 5,539.46 : x
  2. Step 2: Convert to fraction form
    18,690.16/28,030.46 = 5,539.46/x
  3. Step 3: Cross multiply
    18,690.16x = 28,030.46 × 5,539.46
  4. Step 4: Simplify right side
    18,690.16x = 155,273,584.25
  5. Step 5: Solve for x
    x = 155,273,584.25/18,690.16
  6. Step 6: Final answer
    x = 8,307.77

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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.