Home / 18,938.83-26,135.72-10,555.87

Finding the Fourth Proportional to 18,938.83, 26,135.72 and 10,555.87

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Solution

The fourth proportional to 18,938.83, 26,135.72 and 10,555.87 is: 14,567.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938.83 : 26,135.72 = 10,555.87 : x
  2. Step 2: Convert to fraction form
    18,938.83/26,135.72 = 10,555.87/x
  3. Step 3: Cross multiply
    18,938.83x = 26,135.72 × 10,555.87
  4. Step 4: Simplify right side
    18,938.83x = 275,885,262.68
  5. Step 5: Solve for x
    x = 275,885,262.68/18,938.83
  6. Step 6: Final answer
    x = 14,567.18

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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.