Home / 19,310.79-26,651.40-10,816.15

Finding the Fourth Proportional to 19,310.79, 26,651.40 and 10,816.15

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Solution

The fourth proportional to 19,310.79, 26,651.40 and 10,816.15 is: 14,927.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310.79 : 26,651.40 = 10,816.15 : x
  2. Step 2: Convert to fraction form
    19,310.79/26,651.40 = 10,816.15/x
  3. Step 3: Cross multiply
    19,310.79x = 26,651.40 × 10,816.15
  4. Step 4: Simplify right side
    19,310.79x = 288,265,540.11
  5. Step 5: Solve for x
    x = 288,265,540.11/19,310.79
  6. Step 6: Final answer
    x = 14,927.69

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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.