Home / 7,485.24-10,330.22-4,128.36

Finding the Fourth Proportional to 7,485.24, 10,330.22 and 4,128.36

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Solution

The fourth proportional to 7,485.24, 10,330.22 and 4,128.36 is: 5,697.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.24 : 10,330.22 = 4,128.36 : x
  2. Step 2: Convert to fraction form
    7,485.24/10,330.22 = 4,128.36/x
  3. Step 3: Cross multiply
    7,485.24x = 10,330.22 × 4,128.36
  4. Step 4: Simplify right side
    7,485.24x = 42,646,867.04
  5. Step 5: Solve for x
    x = 42,646,867.04/7,485.24
  6. Step 6: Final answer
    x = 5,697.46

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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.