Home / 13,312.96-19,969.92-4,992.12

Finding the Fourth Proportional to 13,312.96, 19,969.92 and 4,992.12

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Solution

The fourth proportional to 13,312.96, 19,969.92 and 4,992.12 is: 7,488.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.96 : 19,969.92 = 4,992.12 : x
  2. Step 2: Convert to fraction form
    13,312.96/19,969.92 = 4,992.12/x
  3. Step 3: Cross multiply
    13,312.96x = 19,969.92 × 4,992.12
  4. Step 4: Simplify right side
    13,312.96x = 99,692,237.03
  5. Step 5: Solve for x
    x = 99,692,237.03/13,312.96
  6. Step 6: Final answer
    x = 7,488.36

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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.