Home / 13,071.66-18,041.51-7,765.45

Finding the Fourth Proportional to 13,071.66, 18,041.51 and 7,765.45

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Solution

The fourth proportional to 13,071.66, 18,041.51 and 7,765.45 is: 10,717.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,071.66 : 18,041.51 = 7,765.45 : x
  2. Step 2: Convert to fraction form
    13,071.66/18,041.51 = 7,765.45/x
  3. Step 3: Cross multiply
    13,071.66x = 18,041.51 × 7,765.45
  4. Step 4: Simplify right side
    13,071.66x = 140,100,519.62
  5. Step 5: Solve for x
    x = 140,100,519.62/13,071.66
  6. Step 6: Final answer
    x = 10,717.88

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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.