Home / 15,364.89-21,204.81-8,650.13

Finding the Fourth Proportional to 15,364.89, 21,204.81 and 8,650.13

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Solution

The fourth proportional to 15,364.89, 21,204.81 and 8,650.13 is: 11,937.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.89 : 21,204.81 = 8,650.13 : x
  2. Step 2: Convert to fraction form
    15,364.89/21,204.81 = 8,650.13/x
  3. Step 3: Cross multiply
    15,364.89x = 21,204.81 × 8,650.13
  4. Step 4: Simplify right side
    15,364.89x = 183,424,257.10
  5. Step 5: Solve for x
    x = 183,424,257.10/15,364.89
  6. Step 6: Final answer
    x = 11,937.88

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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.