Home / 15,916.64-21,965.18-9,629.01

Finding the Fourth Proportional to 15,916.64, 21,965.18 and 9,629.01

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Solution

The fourth proportional to 15,916.64, 21,965.18 and 9,629.01 is: 13,288.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,916.64 : 21,965.18 = 9,629.01 : x
  2. Step 2: Convert to fraction form
    15,916.64/21,965.18 = 9,629.01/x
  3. Step 3: Cross multiply
    15,916.64x = 21,965.18 × 9,629.01
  4. Step 4: Simplify right side
    15,916.64x = 211,502,889.73
  5. Step 5: Solve for x
    x = 211,502,889.73/15,916.64
  6. Step 6: Final answer
    x = 13,288.17

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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.