Home / 15,717.18-21,694.31-9,348.27

Finding the Fourth Proportional to 15,717.18, 21,694.31 and 9,348.27

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Solution

The fourth proportional to 15,717.18, 21,694.31 and 9,348.27 is: 12,903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,717.18 : 21,694.31 = 9,348.27 : x
  2. Step 2: Convert to fraction form
    15,717.18/21,694.31 = 9,348.27/x
  3. Step 3: Cross multiply
    15,717.18x = 21,694.31 × 9,348.27
  4. Step 4: Simplify right side
    15,717.18x = 202,804,267.34
  5. Step 5: Solve for x
    x = 202,804,267.34/15,717.18
  6. Step 6: Final answer
    x = 12,903.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.