Home / 19,515.16-26,926.14-11,557

Finding the Fourth Proportional to 19,515.16, 26,926.14 and 11,557

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Solution

The fourth proportional to 19,515.16, 26,926.14 and 11,557 is: 15,945.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.16 : 26,926.14 = 11,557 : x
  2. Step 2: Convert to fraction form
    19,515.16/26,926.14 = 11,557/x
  3. Step 3: Cross multiply
    19,515.16x = 26,926.14 × 11,557
  4. Step 4: Simplify right side
    19,515.16x = 311,185,399.98
  5. Step 5: Solve for x
    x = 311,185,399.98/19,515.16
  6. Step 6: Final answer
    x = 15,945.83

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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.