Home / 9,345.82-12,897.16-5,154.07

Finding the Fourth Proportional to 9,345.82, 12,897.16 and 5,154.07

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Solution

The fourth proportional to 9,345.82, 12,897.16 and 5,154.07 is: 7,112.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.82 : 12,897.16 = 5,154.07 : x
  2. Step 2: Convert to fraction form
    9,345.82/12,897.16 = 5,154.07/x
  3. Step 3: Cross multiply
    9,345.82x = 12,897.16 × 5,154.07
  4. Step 4: Simplify right side
    9,345.82x = 66,472,865.44
  5. Step 5: Solve for x
    x = 66,472,865.44/9,345.82
  6. Step 6: Final answer
    x = 7,112.58

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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.