Home / 9,537.51-13,161.78-5,345.76

Finding the Fourth Proportional to 9,537.51, 13,161.78 and 5,345.76

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Solution

The fourth proportional to 9,537.51, 13,161.78 and 5,345.76 is: 7,377.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,537.51 : 13,161.78 = 5,345.76 : x
  2. Step 2: Convert to fraction form
    9,537.51/13,161.78 = 5,345.76/x
  3. Step 3: Cross multiply
    9,537.51x = 13,161.78 × 5,345.76
  4. Step 4: Simplify right side
    9,537.51x = 70,359,717.05
  5. Step 5: Solve for x
    x = 70,359,717.05/9,537.51
  6. Step 6: Final answer
    x = 7,377.16

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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.