Home / 10,620.05-14,655.96-6,145.20

Finding the Fourth Proportional to 10,620.05, 14,655.96 and 6,145.20

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Solution

The fourth proportional to 10,620.05, 14,655.96 and 6,145.20 is: 8,480.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.05 : 14,655.96 = 6,145.20 : x
  2. Step 2: Convert to fraction form
    10,620.05/14,655.96 = 6,145.20/x
  3. Step 3: Cross multiply
    10,620.05x = 14,655.96 × 6,145.20
  4. Step 4: Simplify right side
    10,620.05x = 90,063,805.39
  5. Step 5: Solve for x
    x = 90,063,805.39/10,620.05
  6. Step 6: Final answer
    x = 8,480.55

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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.