Home / 13,800.92-19,045.08-8,134.80

Finding the Fourth Proportional to 13,800.92, 19,045.08 and 8,134.80

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Solution

The fourth proportional to 13,800.92, 19,045.08 and 8,134.80 is: 11,225.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.92 : 19,045.08 = 8,134.80 : x
  2. Step 2: Convert to fraction form
    13,800.92/19,045.08 = 8,134.80/x
  3. Step 3: Cross multiply
    13,800.92x = 19,045.08 × 8,134.80
  4. Step 4: Simplify right side
    13,800.92x = 154,927,916.78
  5. Step 5: Solve for x
    x = 154,927,916.78/13,800.92
  6. Step 6: Final answer
    x = 11,225.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.