Home / 7,222.10-9,944.29-6,157.49

Finding the Fourth Proportional to 7,222.10, 9,944.29 and 6,157.49

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Solution

The fourth proportional to 7,222.10, 9,944.29 and 6,157.49 is: 8,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.10 : 9,944.29 = 6,157.49 : x
  2. Step 2: Convert to fraction form
    7,222.10/9,944.29 = 6,157.49/x
  3. Step 3: Cross multiply
    7,222.10x = 9,944.29 × 6,157.49
  4. Step 4: Simplify right side
    7,222.10x = 61,231,866.23
  5. Step 5: Solve for x
    x = 61,231,866.23/7,222.10
  6. Step 6: Final answer
    x = 8,478.40

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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.