Home / 8,875.36-12,245.81-5,425.07

Finding the Fourth Proportional to 8,875.36, 12,245.81 and 5,425.07

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Solution

The fourth proportional to 8,875.36, 12,245.81 and 5,425.07 is: 7,485.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.36 : 12,245.81 = 5,425.07 : x
  2. Step 2: Convert to fraction form
    8,875.36/12,245.81 = 5,425.07/x
  3. Step 3: Cross multiply
    8,875.36x = 12,245.81 × 5,425.07
  4. Step 4: Simplify right side
    8,875.36x = 66,434,359.40
  5. Step 5: Solve for x
    x = 66,434,359.40/8,875.36
  6. Step 6: Final answer
    x = 7,485.26

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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.