Home / 13,215.47-19,834.13-9,917.96

Finding the Fourth Proportional to 13,215.47, 19,834.13 and 9,917.96

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Solution

The fourth proportional to 13,215.47, 19,834.13 and 9,917.96 is: 14,885.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.47 : 19,834.13 = 9,917.96 : x
  2. Step 2: Convert to fraction form
    13,215.47/19,834.13 = 9,917.96/x
  3. Step 3: Cross multiply
    13,215.47x = 19,834.13 × 9,917.96
  4. Step 4: Simplify right side
    13,215.47x = 196,714,033.60
  5. Step 5: Solve for x
    x = 196,714,033.60/13,215.47
  6. Step 6: Final answer
    x = 14,885.14

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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.