Home / 18,977.65-26,187.68-11,020.47

Finding the Fourth Proportional to 18,977.65, 26,187.68 and 11,020.47

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Solution

The fourth proportional to 18,977.65, 26,187.68 and 11,020.47 is: 15,207.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.65 : 26,187.68 = 11,020.47 : x
  2. Step 2: Convert to fraction form
    18,977.65/26,187.68 = 11,020.47/x
  3. Step 3: Cross multiply
    18,977.65x = 26,187.68 × 11,020.47
  4. Step 4: Simplify right side
    18,977.65x = 288,600,541.81
  5. Step 5: Solve for x
    x = 288,600,541.81/18,977.65
  6. Step 6: Final answer
    x = 15,207.39

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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.