Home / 15,510,010.89-21,403,815-8,540,671.83

Finding the Fourth Proportional to 15,510,010.89, 21,403,815 and 8,540,671.83

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Solution

The fourth proportional to 15,510,010.89, 21,403,815 and 8,540,671.83 is: 11,786,127.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,510,010.89 : 21,403,815 = 8,540,671.83 : x
  2. Step 2: Convert to fraction form
    15,510,010.89/21,403,815 = 8,540,671.83/x
  3. Step 3: Cross multiply
    15,510,010.89x = 21,403,815 × 8,540,671.83
  4. Step 4: Simplify right side
    15,510,010.89x = 182,802,959,825,031.44
  5. Step 5: Solve for x
    x = 182,802,959,825,031.44/15,510,010.89
  6. Step 6: Final answer
    x = 11,786,127.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.