Home / 16,931.42-25,390.10-6,399.62

Finding the Fourth Proportional to 16,931.42, 25,390.10 and 6,399.62

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Solution

The fourth proportional to 16,931.42, 25,390.10 and 6,399.62 is: 9,596.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,931.42 : 25,390.10 = 6,399.62 : x
  2. Step 2: Convert to fraction form
    16,931.42/25,390.10 = 6,399.62/x
  3. Step 3: Cross multiply
    16,931.42x = 25,390.10 × 6,399.62
  4. Step 4: Simplify right side
    16,931.42x = 162,486,832.81
  5. Step 5: Solve for x
    x = 162,486,832.81/16,931.42
  6. Step 6: Final answer
    x = 9,596.77

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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.