Home / 10,780.09-16,186.10-6,637.48

Finding the Fourth Proportional to 10,780.09, 16,186.10 and 6,637.48

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Solution

The fourth proportional to 10,780.09, 16,186.10 and 6,637.48 is: 9,966.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.09 : 16,186.10 = 6,637.48 : x
  2. Step 2: Convert to fraction form
    10,780.09/16,186.10 = 6,637.48/x
  3. Step 3: Cross multiply
    10,780.09x = 16,186.10 × 6,637.48
  4. Step 4: Simplify right side
    10,780.09x = 107,434,841.38
  5. Step 5: Solve for x
    x = 107,434,841.38/10,780.09
  6. Step 6: Final answer
    x = 9,966.05

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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.