Home / 19,356.86-26,710.85-10,857.80

Finding the Fourth Proportional to 19,356.86, 26,710.85 and 10,857.80

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Solution

The fourth proportional to 19,356.86, 26,710.85 and 10,857.80 is: 14,982.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,356.86 : 26,710.85 = 10,857.80 : x
  2. Step 2: Convert to fraction form
    19,356.86/26,710.85 = 10,857.80/x
  3. Step 3: Cross multiply
    19,356.86x = 26,710.85 × 10,857.80
  4. Step 4: Simplify right side
    19,356.86x = 290,021,161.05
  5. Step 5: Solve for x
    x = 290,021,161.05/19,356.86
  6. Step 6: Final answer
    x = 14,982.86

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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.