Home / 19,897.18-29,829.53-11,012.15

Finding the Fourth Proportional to 19,897.18, 29,829.53 and 11,012.15

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Solution

The fourth proportional to 19,897.18, 29,829.53 and 11,012.15 is: 16,509.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,897.18 : 29,829.53 = 11,012.15 : x
  2. Step 2: Convert to fraction form
    19,897.18/29,829.53 = 11,012.15/x
  3. Step 3: Cross multiply
    19,897.18x = 29,829.53 × 11,012.15
  4. Step 4: Simplify right side
    19,897.18x = 328,487,360.89
  5. Step 5: Solve for x
    x = 328,487,360.89/19,897.18
  6. Step 6: Final answer
    x = 16,509.24

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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.