Home / 16,838.79-25,219.21-8,389.91

Finding the Fourth Proportional to 16,838.79, 25,219.21 and 8,389.91

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Solution

The fourth proportional to 16,838.79, 25,219.21 and 8,389.91 is: 12,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,838.79 : 25,219.21 = 8,389.91 : x
  2. Step 2: Convert to fraction form
    16,838.79/25,219.21 = 8,389.91/x
  3. Step 3: Cross multiply
    16,838.79x = 25,219.21 × 8,389.91
  4. Step 4: Simplify right side
    16,838.79x = 211,586,902.17
  5. Step 5: Solve for x
    x = 211,586,902.17/16,838.79
  6. Step 6: Final answer
    x = 12,565.45

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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.