Home / 10,272.14-15,402.45-6,989.66

Finding the Fourth Proportional to 10,272.14, 15,402.45 and 6,989.66

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Solution

The fourth proportional to 10,272.14, 15,402.45 and 6,989.66 is: 10,480.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,272.14 : 15,402.45 = 6,989.66 : x
  2. Step 2: Convert to fraction form
    10,272.14/15,402.45 = 6,989.66/x
  3. Step 3: Cross multiply
    10,272.14x = 15,402.45 × 6,989.66
  4. Step 4: Simplify right side
    10,272.14x = 107,657,888.67
  5. Step 5: Solve for x
    x = 107,657,888.67/10,272.14
  6. Step 6: Final answer
    x = 10,480.57

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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.