Home / 15,316.72-21,133.38-8,941.48

Finding the Fourth Proportional to 15,316.72, 21,133.38 and 8,941.48

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Solution

The fourth proportional to 15,316.72, 21,133.38 and 8,941.48 is: 12,337.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316.72 : 21,133.38 = 8,941.48 : x
  2. Step 2: Convert to fraction form
    15,316.72/21,133.38 = 8,941.48/x
  3. Step 3: Cross multiply
    15,316.72x = 21,133.38 × 8,941.48
  4. Step 4: Simplify right side
    15,316.72x = 188,963,694.60
  5. Step 5: Solve for x
    x = 188,963,694.60/15,316.72
  6. Step 6: Final answer
    x = 12,337.09

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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.