Home / 19,380.77-26,753.59-13,101.65

Finding the Fourth Proportional to 19,380.77, 26,753.59 and 13,101.65

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Solution

The fourth proportional to 19,380.77, 26,753.59 and 13,101.65 is: 18,085.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,380.77 : 26,753.59 = 13,101.65 : x
  2. Step 2: Convert to fraction form
    19,380.77/26,753.59 = 13,101.65/x
  3. Step 3: Cross multiply
    19,380.77x = 26,753.59 × 13,101.65
  4. Step 4: Simplify right side
    19,380.77x = 350,516,172.42
  5. Step 5: Solve for x
    x = 350,516,172.42/19,380.77
  6. Step 6: Final answer
    x = 18,085.77

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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.