Home / 9,418.08-12,997.50-5,386.16

Finding the Fourth Proportional to 9,418.08, 12,997.50 and 5,386.16

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Solution

The fourth proportional to 9,418.08, 12,997.50 and 5,386.16 is: 7,433.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.08 : 12,997.50 = 5,386.16 : x
  2. Step 2: Convert to fraction form
    9,418.08/12,997.50 = 5,386.16/x
  3. Step 3: Cross multiply
    9,418.08x = 12,997.50 × 5,386.16
  4. Step 4: Simplify right side
    9,418.08x = 70,006,614.60
  5. Step 5: Solve for x
    x = 70,006,614.60/9,418.08
  6. Step 6: Final answer
    x = 7,433.22

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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.