Home / 13,219.30-19,827.92-4,895.40

Finding the Fourth Proportional to 13,219.30, 19,827.92 and 4,895.40

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Solution

The fourth proportional to 13,219.30, 19,827.92 and 4,895.40 is: 7,342.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.30 : 19,827.92 = 4,895.40 : x
  2. Step 2: Convert to fraction form
    13,219.30/19,827.92 = 4,895.40/x
  3. Step 3: Cross multiply
    13,219.30x = 19,827.92 × 4,895.40
  4. Step 4: Simplify right side
    13,219.30x = 97,065,599.57
  5. Step 5: Solve for x
    x = 97,065,599.57/13,219.30
  6. Step 6: Final answer
    x = 7,342.72

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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.