Home / 13,114.59-19,670.27-5,315.91

Finding the Fourth Proportional to 13,114.59, 19,670.27 and 5,315.91

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Solution

The fourth proportional to 13,114.59, 19,670.27 and 5,315.91 is: 7,973.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,114.59 : 19,670.27 = 5,315.91 : x
  2. Step 2: Convert to fraction form
    13,114.59/19,670.27 = 5,315.91/x
  3. Step 3: Cross multiply
    13,114.59x = 19,670.27 × 5,315.91
  4. Step 4: Simplify right side
    13,114.59x = 104,565,358.42
  5. Step 5: Solve for x
    x = 104,565,358.42/13,114.59
  6. Step 6: Final answer
    x = 7,973.21

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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.