Home / 12,557.62-18,836.16-5,157.19

Finding the Fourth Proportional to 12,557.62, 18,836.16 and 5,157.19

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Solution

The fourth proportional to 12,557.62, 18,836.16 and 5,157.19 is: 7,735.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.62 : 18,836.16 = 5,157.19 : x
  2. Step 2: Convert to fraction form
    12,557.62/18,836.16 = 5,157.19/x
  3. Step 3: Cross multiply
    12,557.62x = 18,836.16 × 5,157.19
  4. Step 4: Simplify right side
    12,557.62x = 97,141,655.99
  5. Step 5: Solve for x
    x = 97,141,655.99/12,557.62
  6. Step 6: Final answer
    x = 7,735.67

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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.