Home / 13,057.53-18,019.70-7,752.36

Finding the Fourth Proportional to 13,057.53, 18,019.70 and 7,752.36

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Solution

The fourth proportional to 13,057.53, 18,019.70 and 7,752.36 is: 10,698.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,057.53 : 18,019.70 = 7,752.36 : x
  2. Step 2: Convert to fraction form
    13,057.53/18,019.70 = 7,752.36/x
  3. Step 3: Cross multiply
    13,057.53x = 18,019.70 × 7,752.36
  4. Step 4: Simplify right side
    13,057.53x = 139,695,162.73
  5. Step 5: Solve for x
    x = 139,695,162.73/13,057.53
  6. Step 6: Final answer
    x = 10,698.44

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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.