Home / 9,834.81-13,570.51-5,642.25

Finding the Fourth Proportional to 9,834.81, 13,570.51 and 5,642.25

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Solution

The fourth proportional to 9,834.81, 13,570.51 and 5,642.25 is: 7,785.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,834.81 : 13,570.51 = 5,642.25 : x
  2. Step 2: Convert to fraction form
    9,834.81/13,570.51 = 5,642.25/x
  3. Step 3: Cross multiply
    9,834.81x = 13,570.51 × 5,642.25
  4. Step 4: Simplify right side
    9,834.81x = 76,568,210.05
  5. Step 5: Solve for x
    x = 76,568,210.05/9,834.81
  6. Step 6: Final answer
    x = 7,785.43

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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.