Home / 9,775.42-13,490.03-5,299.16

Finding the Fourth Proportional to 9,775.42, 13,490.03 and 5,299.16

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Solution

The fourth proportional to 9,775.42, 13,490.03 and 5,299.16 is: 7,312.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,775.42 : 13,490.03 = 5,299.16 : x
  2. Step 2: Convert to fraction form
    9,775.42/13,490.03 = 5,299.16/x
  3. Step 3: Cross multiply
    9,775.42x = 13,490.03 × 5,299.16
  4. Step 4: Simplify right side
    9,775.42x = 71,485,733.43
  5. Step 5: Solve for x
    x = 71,485,733.43/9,775.42
  6. Step 6: Final answer
    x = 7,312.81

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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.