Home / 9,867.51-13,617.00-5,391.16

Finding the Fourth Proportional to 9,867.51, 13,617.00 and 5,391.16

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Solution

The fourth proportional to 9,867.51, 13,617.00 and 5,391.16 is: 7,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,867.51 : 13,617.00 = 5,391.16 : x
  2. Step 2: Convert to fraction form
    9,867.51/13,617.00 = 5,391.16/x
  3. Step 3: Cross multiply
    9,867.51x = 13,617.00 × 5,391.16
  4. Step 4: Simplify right side
    9,867.51x = 73,411,427.18
  5. Step 5: Solve for x
    x = 73,411,427.18/9,867.51
  6. Step 6: Final answer
    x = 7,439.71

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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.