Home / 19,916.48-27,485.52-10,964.81

Finding the Fourth Proportional to 19,916.48, 27,485.52 and 10,964.81

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Solution

The fourth proportional to 19,916.48, 27,485.52 and 10,964.81 is: 15,131.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.48 : 27,485.52 = 10,964.81 : x
  2. Step 2: Convert to fraction form
    19,916.48/27,485.52 = 10,964.81/x
  3. Step 3: Cross multiply
    19,916.48x = 27,485.52 × 10,964.81
  4. Step 4: Simplify right side
    19,916.48x = 301,373,504.55
  5. Step 5: Solve for x
    x = 301,373,504.55/19,916.48
  6. Step 6: Final answer
    x = 15,131.87

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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.