Home / 9,345.14-12,895.68-5,153.42

Finding the Fourth Proportional to 9,345.14, 12,895.68 and 5,153.42

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Solution

The fourth proportional to 9,345.14, 12,895.68 and 5,153.42 is: 7,111.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.14 : 12,895.68 = 5,153.42 : x
  2. Step 2: Convert to fraction form
    9,345.14/12,895.68 = 5,153.42/x
  3. Step 3: Cross multiply
    9,345.14x = 12,895.68 × 5,153.42
  4. Step 4: Simplify right side
    9,345.14x = 66,456,855.23
  5. Step 5: Solve for x
    x = 66,456,855.23/9,345.14
  6. Step 6: Final answer
    x = 7,111.38

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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.