Home / 13,590.12-20,387.93-4,825.72

Finding the Fourth Proportional to 13,590.12, 20,387.93 and 4,825.72

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Solution

The fourth proportional to 13,590.12, 20,387.93 and 4,825.72 is: 7,239.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.12 : 20,387.93 = 4,825.72 : x
  2. Step 2: Convert to fraction form
    13,590.12/20,387.93 = 4,825.72/x
  3. Step 3: Cross multiply
    13,590.12x = 20,387.93 × 4,825.72
  4. Step 4: Simplify right side
    13,590.12x = 98,386,441.56
  5. Step 5: Solve for x
    x = 98,386,441.56/13,590.12
  6. Step 6: Final answer
    x = 7,239.56

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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.