Home / 11,157.79-15,398.18-6,122.22

Finding the Fourth Proportional to 11,157.79, 15,398.18 and 6,122.22

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Solution

The fourth proportional to 11,157.79, 15,398.18 and 6,122.22 is: 8,448.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.79 : 15,398.18 = 6,122.22 : x
  2. Step 2: Convert to fraction form
    11,157.79/15,398.18 = 6,122.22/x
  3. Step 3: Cross multiply
    11,157.79x = 15,398.18 × 6,122.22
  4. Step 4: Simplify right side
    11,157.79x = 94,271,045.56
  5. Step 5: Solve for x
    x = 94,271,045.56/11,157.79
  6. Step 6: Final answer
    x = 8,448.90

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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.