Home / 15,747.02-21,730.90-8,673.46

Finding the Fourth Proportional to 15,747.02, 21,730.90 and 8,673.46

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Solution

The fourth proportional to 15,747.02, 21,730.90 and 8,673.46 is: 11,969.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,747.02 : 21,730.90 = 8,673.46 : x
  2. Step 2: Convert to fraction form
    15,747.02/21,730.90 = 8,673.46/x
  3. Step 3: Cross multiply
    15,747.02x = 21,730.90 × 8,673.46
  4. Step 4: Simplify right side
    15,747.02x = 188,482,091.91
  5. Step 5: Solve for x
    x = 188,482,091.91/15,747.02
  6. Step 6: Final answer
    x = 11,969.38

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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.