Home / 13,283.30-18,331.02-7,618.25

Finding the Fourth Proportional to 13,283.30, 18,331.02 and 7,618.25

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Solution

The fourth proportional to 13,283.30, 18,331.02 and 7,618.25 is: 10,513.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.30 : 18,331.02 = 7,618.25 : x
  2. Step 2: Convert to fraction form
    13,283.30/18,331.02 = 7,618.25/x
  3. Step 3: Cross multiply
    13,283.30x = 18,331.02 × 7,618.25
  4. Step 4: Simplify right side
    13,283.30x = 139,650,338.94
  5. Step 5: Solve for x
    x = 139,650,338.94/13,283.30
  6. Step 6: Final answer
    x = 10,513.22

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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.