Home / 15,659.04-21,610.08-8,943.28

Finding the Fourth Proportional to 15,659.04, 21,610.08 and 8,943.28

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Solution

The fourth proportional to 15,659.04, 21,610.08 and 8,943.28 is: 12,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.04 : 21,610.08 = 8,943.28 : x
  2. Step 2: Convert to fraction form
    15,659.04/21,610.08 = 8,943.28/x
  3. Step 3: Cross multiply
    15,659.04x = 21,610.08 × 8,943.28
  4. Step 4: Simplify right side
    15,659.04x = 193,264,996.26
  5. Step 5: Solve for x
    x = 193,264,996.26/15,659.04
  6. Step 6: Final answer
    x = 12,342.07

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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.