Home / 13,898.04-20,854.08-6,972

Finding the Fourth Proportional to 13,898.04, 20,854.08 and 6,972

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Solution

The fourth proportional to 13,898.04, 20,854.08 and 6,972 is: 10,461.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,898.04 : 20,854.08 = 6,972 : x
  2. Step 2: Convert to fraction form
    13,898.04/20,854.08 = 6,972/x
  3. Step 3: Cross multiply
    13,898.04x = 20,854.08 × 6,972
  4. Step 4: Simplify right side
    13,898.04x = 145,394,645.76
  5. Step 5: Solve for x
    x = 145,394,645.76/13,898.04
  6. Step 6: Final answer
    x = 10,461.52

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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.