Home / 9,143.21-13,701.66-5,386.13

Finding the Fourth Proportional to 9,143.21, 13,701.66 and 5,386.13

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Solution

The fourth proportional to 9,143.21, 13,701.66 and 5,386.13 is: 8,071.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.21 : 13,701.66 = 5,386.13 : x
  2. Step 2: Convert to fraction form
    9,143.21/13,701.66 = 5,386.13/x
  3. Step 3: Cross multiply
    9,143.21x = 13,701.66 × 5,386.13
  4. Step 4: Simplify right side
    9,143.21x = 73,798,884.65
  5. Step 5: Solve for x
    x = 73,798,884.65/9,143.21
  6. Step 6: Final answer
    x = 8,071.44

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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.