Home / 9,531.12-13,153.12-5,339.36

Finding the Fourth Proportional to 9,531.12, 13,153.12 and 5,339.36

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Solution

The fourth proportional to 9,531.12, 13,153.12 and 5,339.36 is: 7,368.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,531.12 : 13,153.12 = 5,339.36 : x
  2. Step 2: Convert to fraction form
    9,531.12/13,153.12 = 5,339.36/x
  3. Step 3: Cross multiply
    9,531.12x = 13,153.12 × 5,339.36
  4. Step 4: Simplify right side
    9,531.12x = 70,229,242.80
  5. Step 5: Solve for x
    x = 70,229,242.80/9,531.12
  6. Step 6: Final answer
    x = 7,368.41

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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.