Home / 15,746.08-21,730.89-8,673.82

Finding the Fourth Proportional to 15,746.08, 21,730.89 and 8,673.82

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Solution

The fourth proportional to 15,746.08, 21,730.89 and 8,673.82 is: 11,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,746.08 : 21,730.89 = 8,673.82 : x
  2. Step 2: Convert to fraction form
    15,746.08/21,730.89 = 8,673.82/x
  3. Step 3: Cross multiply
    15,746.08x = 21,730.89 × 8,673.82
  4. Step 4: Simplify right side
    15,746.08x = 188,489,828.30
  5. Step 5: Solve for x
    x = 188,489,828.30/15,746.08
  6. Step 6: Final answer
    x = 11,970.59

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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.