Home / 19,218.86-26,519.00-10,720.57

Finding the Fourth Proportional to 19,218.86, 26,519.00 and 10,720.57

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Solution

The fourth proportional to 19,218.86, 26,519.00 and 10,720.57 is: 14,792.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.86 : 26,519.00 = 10,720.57 : x
  2. Step 2: Convert to fraction form
    19,218.86/26,519.00 = 10,720.57/x
  3. Step 3: Cross multiply
    19,218.86x = 26,519.00 × 10,720.57
  4. Step 4: Simplify right side
    19,218.86x = 284,298,815.51
  5. Step 5: Solve for x
    x = 284,298,815.51/19,218.86
  6. Step 6: Final answer
    x = 14,792.70

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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.