Home / 13,312.96-19,974.48-5,521.12

Finding the Fourth Proportional to 13,312.96, 19,974.48 and 5,521.12

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Solution

The fourth proportional to 13,312.96, 19,974.48 and 5,521.12 is: 8,283.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.96 : 19,974.48 = 5,521.12 : x
  2. Step 2: Convert to fraction form
    13,312.96/19,974.48 = 5,521.12/x
  3. Step 3: Cross multiply
    13,312.96x = 19,974.48 × 5,521.12
  4. Step 4: Simplify right side
    13,312.96x = 110,281,501.02
  5. Step 5: Solve for x
    x = 110,281,501.02/13,312.96
  6. Step 6: Final answer
    x = 8,283.77

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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.