Home / 13,011.78-19,515.45-4,690.14

Finding the Fourth Proportional to 13,011.78, 19,515.45 and 4,690.14

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Solution

The fourth proportional to 13,011.78, 19,515.45 and 4,690.14 is: 7,034.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,011.78 : 19,515.45 = 4,690.14 : x
  2. Step 2: Convert to fraction form
    13,011.78/19,515.45 = 4,690.14/x
  3. Step 3: Cross multiply
    13,011.78x = 19,515.45 × 4,690.14
  4. Step 4: Simplify right side
    13,011.78x = 91,530,192.66
  5. Step 5: Solve for x
    x = 91,530,192.66/13,011.78
  6. Step 6: Final answer
    x = 7,034.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.