Home / 10,871.58-15,001.35-6,885.66

Finding the Fourth Proportional to 10,871.58, 15,001.35 and 6,885.66

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Solution

The fourth proportional to 10,871.58, 15,001.35 and 6,885.66 is: 9,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.58 : 15,001.35 = 6,885.66 : x
  2. Step 2: Convert to fraction form
    10,871.58/15,001.35 = 6,885.66/x
  3. Step 3: Cross multiply
    10,871.58x = 15,001.35 × 6,885.66
  4. Step 4: Simplify right side
    10,871.58x = 103,294,195.64
  5. Step 5: Solve for x
    x = 103,294,195.64/10,871.58
  6. Step 6: Final answer
    x = 9,501.30

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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.