Home / 13,177.28-19,681.75-11,925.96

Finding the Fourth Proportional to 13,177.28, 19,681.75 and 11,925.96

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Solution

The fourth proportional to 13,177.28, 19,681.75 and 11,925.96 is: 17,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.28 : 19,681.75 = 11,925.96 : x
  2. Step 2: Convert to fraction form
    13,177.28/19,681.75 = 11,925.96/x
  3. Step 3: Cross multiply
    13,177.28x = 19,681.75 × 11,925.96
  4. Step 4: Simplify right side
    13,177.28x = 234,723,763.23
  5. Step 5: Solve for x
    x = 234,723,763.23/13,177.28
  6. Step 6: Final answer
    x = 17,812.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.