Home / 9,421.87-13,001.75-5,647.13

Finding the Fourth Proportional to 9,421.87, 13,001.75 and 5,647.13

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Solution

The fourth proportional to 9,421.87, 13,001.75 and 5,647.13 is: 7,792.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.87 : 13,001.75 = 5,647.13 : x
  2. Step 2: Convert to fraction form
    9,421.87/13,001.75 = 5,647.13/x
  3. Step 3: Cross multiply
    9,421.87x = 13,001.75 × 5,647.13
  4. Step 4: Simplify right side
    9,421.87x = 73,422,591.27
  5. Step 5: Solve for x
    x = 73,422,591.27/9,421.87
  6. Step 6: Final answer
    x = 7,792.78

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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.