Home / 19,560.83-26,985.56-13,191.53

Finding the Fourth Proportional to 19,560.83, 26,985.56 and 13,191.53

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Solution

The fourth proportional to 19,560.83, 26,985.56 and 13,191.53 is: 18,198.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,560.83 : 26,985.56 = 13,191.53 : x
  2. Step 2: Convert to fraction form
    19,560.83/26,985.56 = 13,191.53/x
  3. Step 3: Cross multiply
    19,560.83x = 26,985.56 × 13,191.53
  4. Step 4: Simplify right side
    19,560.83x = 355,980,623.42
  5. Step 5: Solve for x
    x = 355,980,623.42/19,560.83
  6. Step 6: Final answer
    x = 18,198.65

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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.