Home / 19,355.34-26,707.38-10,857.90

Finding the Fourth Proportional to 19,355.34, 26,707.38 and 10,857.90

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Solution

The fourth proportional to 19,355.34, 26,707.38 and 10,857.90 is: 14,982.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,355.34 : 26,707.38 = 10,857.90 : x
  2. Step 2: Convert to fraction form
    19,355.34/26,707.38 = 10,857.90/x
  3. Step 3: Cross multiply
    19,355.34x = 26,707.38 × 10,857.90
  4. Step 4: Simplify right side
    19,355.34x = 289,986,061.30
  5. Step 5: Solve for x
    x = 289,986,061.30/19,355.34
  6. Step 6: Final answer
    x = 14,982.23

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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.