Home / 9,379.41-12,943.50-5,130.56

Finding the Fourth Proportional to 9,379.41, 12,943.50 and 5,130.56

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Solution

The fourth proportional to 9,379.41, 12,943.50 and 5,130.56 is: 7,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.41 : 12,943.50 = 5,130.56 : x
  2. Step 2: Convert to fraction form
    9,379.41/12,943.50 = 5,130.56/x
  3. Step 3: Cross multiply
    9,379.41x = 12,943.50 × 5,130.56
  4. Step 4: Simplify right side
    9,379.41x = 66,407,338.64
  5. Step 5: Solve for x
    x = 66,407,338.64/9,379.41
  6. Step 6: Final answer
    x = 7,080.12

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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.