Home / 11,612.31-16,031.63-7,644.95

Finding the Fourth Proportional to 11,612.31, 16,031.63 and 7,644.95

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Solution

The fourth proportional to 11,612.31, 16,031.63 and 7,644.95 is: 10,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,612.31 : 16,031.63 = 7,644.95 : x
  2. Step 2: Convert to fraction form
    11,612.31/16,031.63 = 7,644.95/x
  3. Step 3: Cross multiply
    11,612.31x = 16,031.63 × 7,644.95
  4. Step 4: Simplify right side
    11,612.31x = 122,561,009.77
  5. Step 5: Solve for x
    x = 122,561,009.77/11,612.31
  6. Step 6: Final answer
    x = 10,554.40

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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.