Home / 12,931.93-19,397.51-3,572.51

Finding the Fourth Proportional to 12,931.93, 19,397.51 and 3,572.51

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Solution

The fourth proportional to 12,931.93, 19,397.51 and 3,572.51 is: 5,358.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.93 : 19,397.51 = 3,572.51 : x
  2. Step 2: Convert to fraction form
    12,931.93/19,397.51 = 3,572.51/x
  3. Step 3: Cross multiply
    12,931.93x = 19,397.51 × 3,572.51
  4. Step 4: Simplify right side
    12,931.93x = 69,297,884.59
  5. Step 5: Solve for x
    x = 69,297,884.59/12,931.93
  6. Step 6: Final answer
    x = 5,358.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.