Home / 7,945.02-10,972.93-5,422.68

Finding the Fourth Proportional to 7,945.02, 10,972.93 and 5,422.68

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Solution

The fourth proportional to 7,945.02, 10,972.93 and 5,422.68 is: 7,489.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.02 : 10,972.93 = 5,422.68 : x
  2. Step 2: Convert to fraction form
    7,945.02/10,972.93 = 5,422.68/x
  3. Step 3: Cross multiply
    7,945.02x = 10,972.93 × 5,422.68
  4. Step 4: Simplify right side
    7,945.02x = 59,502,688.05
  5. Step 5: Solve for x
    x = 59,502,688.05/7,945.02
  6. Step 6: Final answer
    x = 7,489.31

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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.