Home / 9,513.16-13,131.66-7,151.20

Finding the Fourth Proportional to 9,513.16, 13,131.66 and 7,151.20

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Solution

The fourth proportional to 9,513.16, 13,131.66 and 7,151.20 is: 9,871.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,513.16 : 13,131.66 = 7,151.20 : x
  2. Step 2: Convert to fraction form
    9,513.16/13,131.66 = 7,151.20/x
  3. Step 3: Cross multiply
    9,513.16x = 13,131.66 × 7,151.20
  4. Step 4: Simplify right side
    9,513.16x = 93,907,126.99
  5. Step 5: Solve for x
    x = 93,907,126.99/9,513.16
  6. Step 6: Final answer
    x = 9,871.29

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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.