Home / 13,577.05-20,376.51-7,005.12

Finding the Fourth Proportional to 13,577.05, 20,376.51 and 7,005.12

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Solution

The fourth proportional to 13,577.05, 20,376.51 and 7,005.12 is: 10,513.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,577.05 : 20,376.51 = 7,005.12 : x
  2. Step 2: Convert to fraction form
    13,577.05/20,376.51 = 7,005.12/x
  3. Step 3: Cross multiply
    13,577.05x = 20,376.51 × 7,005.12
  4. Step 4: Simplify right side
    13,577.05x = 142,739,897.73
  5. Step 5: Solve for x
    x = 142,739,897.73/13,577.05
  6. Step 6: Final answer
    x = 10,513.32

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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.