Home / 13,265.78-19,875.58-11,071.49

Finding the Fourth Proportional to 13,265.78, 19,875.58 and 11,071.49

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Solution

The fourth proportional to 13,265.78, 19,875.58 and 11,071.49 is: 16,587.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.78 : 19,875.58 = 11,071.49 : x
  2. Step 2: Convert to fraction form
    13,265.78/19,875.58 = 11,071.49/x
  3. Step 3: Cross multiply
    13,265.78x = 19,875.58 × 11,071.49
  4. Step 4: Simplify right side
    13,265.78x = 220,052,158.16
  5. Step 5: Solve for x
    x = 220,052,158.16/13,265.78
  6. Step 6: Final answer
    x = 16,587.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.