Home / 19,156.27-26,420.65-13,110.09

Finding the Fourth Proportional to 19,156.27, 26,420.65 and 13,110.09

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Solution

The fourth proportional to 19,156.27, 26,420.65 and 13,110.09 is: 18,081.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156.27 : 26,420.65 = 13,110.09 : x
  2. Step 2: Convert to fraction form
    19,156.27/26,420.65 = 13,110.09/x
  3. Step 3: Cross multiply
    19,156.27x = 26,420.65 × 13,110.09
  4. Step 4: Simplify right side
    19,156.27x = 346,377,033.81
  5. Step 5: Solve for x
    x = 346,377,033.81/19,156.27
  6. Step 6: Final answer
    x = 18,081.66

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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.