Home / 15,795.02-21,796.56-8,721.29

Finding the Fourth Proportional to 15,795.02, 21,796.56 and 8,721.29

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Solution

The fourth proportional to 15,795.02, 21,796.56 and 8,721.29 is: 12,035.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,795.02 : 21,796.56 = 8,721.29 : x
  2. Step 2: Convert to fraction form
    15,795.02/21,796.56 = 8,721.29/x
  3. Step 3: Cross multiply
    15,795.02x = 21,796.56 × 8,721.29
  4. Step 4: Simplify right side
    15,795.02x = 190,094,175.25
  5. Step 5: Solve for x
    x = 190,094,175.25/15,795.02
  6. Step 6: Final answer
    x = 12,035.07

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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.