Home / 13,102.40-19,615.20-11,566.40

Finding the Fourth Proportional to 13,102.40, 19,615.20 and 11,566.40

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Solution

The fourth proportional to 13,102.40, 19,615.20 and 11,566.40 is: 17,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.40 : 19,615.20 = 11,566.40 : x
  2. Step 2: Convert to fraction form
    13,102.40/19,615.20 = 11,566.40/x
  3. Step 3: Cross multiply
    13,102.40x = 19,615.20 × 11,566.40
  4. Step 4: Simplify right side
    13,102.40x = 226,877,249.28
  5. Step 5: Solve for x
    x = 226,877,249.28/13,102.40
  6. Step 6: Final answer
    x = 17,315.70

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1.5x scale

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.