Home / 9,636.87-13,293.45-5,657.21

Finding the Fourth Proportional to 9,636.87, 13,293.45 and 5,657.21

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Solution

The fourth proportional to 9,636.87, 13,293.45 and 5,657.21 is: 7,803.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,636.87 : 13,293.45 = 5,657.21 : x
  2. Step 2: Convert to fraction form
    9,636.87/13,293.45 = 5,657.21/x
  3. Step 3: Cross multiply
    9,636.87x = 13,293.45 × 5,657.21
  4. Step 4: Simplify right side
    9,636.87x = 75,203,771.81
  5. Step 5: Solve for x
    x = 75,203,771.81/9,636.87
  6. Step 6: Final answer
    x = 7,803.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.