Home / 15,921.77-21,956.67-10,541.75

Finding the Fourth Proportional to 15,921.77, 21,956.67 and 10,541.75

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Solution

The fourth proportional to 15,921.77, 21,956.67 and 10,541.75 is: 14,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921.77 : 21,956.67 = 10,541.75 : x
  2. Step 2: Convert to fraction form
    15,921.77/21,956.67 = 10,541.75/x
  3. Step 3: Cross multiply
    15,921.77x = 21,956.67 × 10,541.75
  4. Step 4: Simplify right side
    15,921.77x = 231,461,616.19
  5. Step 5: Solve for x
    x = 231,461,616.19/15,921.77
  6. Step 6: Final answer
    x = 14,537.43

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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.