Home / 12,399.68-18,594.42-6,157.40

Finding the Fourth Proportional to 12,399.68, 18,594.42 and 6,157.40

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Solution

The fourth proportional to 12,399.68, 18,594.42 and 6,157.40 is: 9,233.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.68 : 18,594.42 = 6,157.40 : x
  2. Step 2: Convert to fraction form
    12,399.68/18,594.42 = 6,157.40/x
  3. Step 3: Cross multiply
    12,399.68x = 18,594.42 × 6,157.40
  4. Step 4: Simplify right side
    12,399.68x = 114,493,281.71
  5. Step 5: Solve for x
    x = 114,493,281.71/12,399.68
  6. Step 6: Final answer
    x = 9,233.57

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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.