Home / 7,945.34-10,965.51-5,426.64

Finding the Fourth Proportional to 7,945.34, 10,965.51 and 5,426.64

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Solution

The fourth proportional to 7,945.34, 10,965.51 and 5,426.64 is: 7,489.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.34 : 10,965.51 = 5,426.64 : x
  2. Step 2: Convert to fraction form
    7,945.34/10,965.51 = 5,426.64/x
  3. Step 3: Cross multiply
    7,945.34x = 10,965.51 × 5,426.64
  4. Step 4: Simplify right side
    7,945.34x = 59,505,875.19
  5. Step 5: Solve for x
    x = 59,505,875.19/7,945.34
  6. Step 6: Final answer
    x = 7,489.41

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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.