Home / 19,389.57-26,750.58-11,001.21

Finding the Fourth Proportional to 19,389.57, 26,750.58 and 11,001.21

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Solution

The fourth proportional to 19,389.57, 26,750.58 and 11,001.21 is: 15,177.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.57 : 26,750.58 = 11,001.21 : x
  2. Step 2: Convert to fraction form
    19,389.57/26,750.58 = 11,001.21/x
  3. Step 3: Cross multiply
    19,389.57x = 26,750.58 × 11,001.21
  4. Step 4: Simplify right side
    19,389.57x = 294,288,748.20
  5. Step 5: Solve for x
    x = 294,288,748.20/19,389.57
  6. Step 6: Final answer
    x = 15,177.68

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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.