Home / 7,131.40-10,656.32-5,433.47

Finding the Fourth Proportional to 7,131.40, 10,656.32 and 5,433.47

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Solution

The fourth proportional to 7,131.40, 10,656.32 and 5,433.47 is: 8,119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.40 : 10,656.32 = 5,433.47 : x
  2. Step 2: Convert to fraction form
    7,131.40/10,656.32 = 5,433.47/x
  3. Step 3: Cross multiply
    7,131.40x = 10,656.32 × 5,433.47
  4. Step 4: Simplify right side
    7,131.40x = 57,900,770.12
  5. Step 5: Solve for x
    x = 57,900,770.12/7,131.40
  6. Step 6: Final answer
    x = 8,119.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.