Home / 10,066.45-15,101.70-8,434.30

Finding the Fourth Proportional to 10,066.45, 15,101.70 and 8,434.30

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Solution

The fourth proportional to 10,066.45, 15,101.70 and 8,434.30 is: 12,653.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,066.45 : 15,101.70 = 8,434.30 : x
  2. Step 2: Convert to fraction form
    10,066.45/15,101.70 = 8,434.30/x
  3. Step 3: Cross multiply
    10,066.45x = 15,101.70 × 8,434.30
  4. Step 4: Simplify right side
    10,066.45x = 127,372,268.31
  5. Step 5: Solve for x
    x = 127,372,268.31/10,066.45
  6. Step 6: Final answer
    x = 12,653.15

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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.