Home / 12,898.71-19,315.26-8,502.84

Finding the Fourth Proportional to 12,898.71, 19,315.26 and 8,502.84

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Solution

The fourth proportional to 12,898.71, 19,315.26 and 8,502.84 is: 12,732.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.71 : 19,315.26 = 8,502.84 : x
  2. Step 2: Convert to fraction form
    12,898.71/19,315.26 = 8,502.84/x
  3. Step 3: Cross multiply
    12,898.71x = 19,315.26 × 8,502.84
  4. Step 4: Simplify right side
    12,898.71x = 164,234,565.34
  5. Step 5: Solve for x
    x = 164,234,565.34/12,898.71
  6. Step 6: Final answer
    x = 12,732.63

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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.