Home / 13,869.27-19,139.94-8,492.58

Finding the Fourth Proportional to 13,869.27, 19,139.94 and 8,492.58

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Solution

The fourth proportional to 13,869.27, 19,139.94 and 8,492.58 is: 11,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.27 : 19,139.94 = 8,492.58 : x
  2. Step 2: Convert to fraction form
    13,869.27/19,139.94 = 8,492.58/x
  3. Step 3: Cross multiply
    13,869.27x = 19,139.94 × 8,492.58
  4. Step 4: Simplify right side
    13,869.27x = 162,547,471.65
  5. Step 5: Solve for x
    x = 162,547,471.65/13,869.27
  6. Step 6: Final answer
    x = 11,719.97

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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.