Home / 9,538.12-13,161.18-5,345.56

Finding the Fourth Proportional to 9,538.12, 13,161.18 and 5,345.56

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Solution

The fourth proportional to 9,538.12, 13,161.18 and 5,345.56 is: 7,376.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,538.12 : 13,161.18 = 5,345.56 : x
  2. Step 2: Convert to fraction form
    9,538.12/13,161.18 = 5,345.56/x
  3. Step 3: Cross multiply
    9,538.12x = 13,161.18 × 5,345.56
  4. Step 4: Simplify right side
    9,538.12x = 70,353,877.36
  5. Step 5: Solve for x
    x = 70,353,877.36/9,538.12
  6. Step 6: Final answer
    x = 7,376.07

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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.