Home / 15,664.89-21,617.51-8,952.60

Finding the Fourth Proportional to 15,664.89, 21,617.51 and 8,952.60

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Solution

The fourth proportional to 15,664.89, 21,617.51 and 8,952.60 is: 12,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,664.89 : 21,617.51 = 8,952.60 : x
  2. Step 2: Convert to fraction form
    15,664.89/21,617.51 = 8,952.60/x
  3. Step 3: Cross multiply
    15,664.89x = 21,617.51 × 8,952.60
  4. Step 4: Simplify right side
    15,664.89x = 193,532,875.26
  5. Step 5: Solve for x
    x = 193,532,875.26/15,664.89
  6. Step 6: Final answer
    x = 12,354.56

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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.