Home / 7,431.06-11,146.98-5,345.30

Finding the Fourth Proportional to 7,431.06, 11,146.98 and 5,345.30

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Solution

The fourth proportional to 7,431.06, 11,146.98 and 5,345.30 is: 8,018.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.06 : 11,146.98 = 5,345.30 : x
  2. Step 2: Convert to fraction form
    7,431.06/11,146.98 = 5,345.30/x
  3. Step 3: Cross multiply
    7,431.06x = 11,146.98 × 5,345.30
  4. Step 4: Simplify right side
    7,431.06x = 59,583,952.19
  5. Step 5: Solve for x
    x = 59,583,952.19/7,431.06
  6. Step 6: Final answer
    x = 8,018.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.