Home / 15,472.36-21,343.78-9,505.36

Finding the Fourth Proportional to 15,472.36, 21,343.78 and 9,505.36

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Solution

The fourth proportional to 15,472.36, 21,343.78 and 9,505.36 is: 13,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,472.36 : 21,343.78 = 9,505.36 : x
  2. Step 2: Convert to fraction form
    15,472.36/21,343.78 = 9,505.36/x
  3. Step 3: Cross multiply
    15,472.36x = 21,343.78 × 9,505.36
  4. Step 4: Simplify right side
    15,472.36x = 202,880,312.66
  5. Step 5: Solve for x
    x = 202,880,312.66/15,472.36
  6. Step 6: Final answer
    x = 13,112.43

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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.