Home / 15,230.48-21,009.30-8,941.64

Finding the Fourth Proportional to 15,230.48, 21,009.30 and 8,941.64

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Solution

The fourth proportional to 15,230.48, 21,009.30 and 8,941.64 is: 12,334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,230.48 : 21,009.30 = 8,941.64 : x
  2. Step 2: Convert to fraction form
    15,230.48/21,009.30 = 8,941.64/x
  3. Step 3: Cross multiply
    15,230.48x = 21,009.30 × 8,941.64
  4. Step 4: Simplify right side
    15,230.48x = 187,857,597.25
  5. Step 5: Solve for x
    x = 187,857,597.25/15,230.48
  6. Step 6: Final answer
    x = 12,334.32

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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.