Home / 13,283.67-18,330.75-7,618.15

Finding the Fourth Proportional to 13,283.67, 18,330.75 and 7,618.15

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Solution

The fourth proportional to 13,283.67, 18,330.75 and 7,618.15 is: 10,512.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.67 : 18,330.75 = 7,618.15 : x
  2. Step 2: Convert to fraction form
    13,283.67/18,330.75 = 7,618.15/x
  3. Step 3: Cross multiply
    13,283.67x = 18,330.75 × 7,618.15
  4. Step 4: Simplify right side
    13,283.67x = 139,646,426.03
  5. Step 5: Solve for x
    x = 139,646,426.03/13,283.67
  6. Step 6: Final answer
    x = 10,512.64

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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.