Home / 13,283.06-18,329.91-7,617.53

Finding the Fourth Proportional to 13,283.06, 18,329.91 and 7,617.53

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Solution

The fourth proportional to 13,283.06, 18,329.91 and 7,617.53 is: 10,511.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.06 : 18,329.91 = 7,617.53 : x
  2. Step 2: Convert to fraction form
    13,283.06/18,329.91 = 7,617.53/x
  3. Step 3: Cross multiply
    13,283.06x = 18,329.91 × 7,617.53
  4. Step 4: Simplify right side
    13,283.06x = 139,628,713.71
  5. Step 5: Solve for x
    x = 139,628,713.71/13,283.06
  6. Step 6: Final answer
    x = 10,511.79

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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.