Home / 13,331.47-18,397.58-7,669.03

Finding the Fourth Proportional to 13,331.47, 18,397.58 and 7,669.03

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Solution

The fourth proportional to 13,331.47, 18,397.58 and 7,669.03 is: 10,583.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.47 : 18,397.58 = 7,669.03 : x
  2. Step 2: Convert to fraction form
    13,331.47/18,397.58 = 7,669.03/x
  3. Step 3: Cross multiply
    13,331.47x = 18,397.58 × 7,669.03
  4. Step 4: Simplify right side
    13,331.47x = 141,091,554.60
  5. Step 5: Solve for x
    x = 141,091,554.60/13,331.47
  6. Step 6: Final answer
    x = 10,583.35

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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.