Home / 9,157.41-12,638.14-5,572.62

Finding the Fourth Proportional to 9,157.41, 12,638.14 and 5,572.62

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Solution

The fourth proportional to 9,157.41, 12,638.14 and 5,572.62 is: 7,690.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.41 : 12,638.14 = 5,572.62 : x
  2. Step 2: Convert to fraction form
    9,157.41/12,638.14 = 5,572.62/x
  3. Step 3: Cross multiply
    9,157.41x = 12,638.14 × 5,572.62
  4. Step 4: Simplify right side
    9,157.41x = 70,427,537.80
  5. Step 5: Solve for x
    x = 70,427,537.80/9,157.41
  6. Step 6: Final answer
    x = 7,690.77

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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.