Home / 8,485.36-11,707.68-4,947.28

Finding the Fourth Proportional to 8,485.36, 11,707.68 and 4,947.28

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Solution

The fourth proportional to 8,485.36, 11,707.68 and 4,947.28 is: 6,826.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.36 : 11,707.68 = 4,947.28 : x
  2. Step 2: Convert to fraction form
    8,485.36/11,707.68 = 4,947.28/x
  3. Step 3: Cross multiply
    8,485.36x = 11,707.68 × 4,947.28
  4. Step 4: Simplify right side
    8,485.36x = 57,921,171.11
  5. Step 5: Solve for x
    x = 57,921,171.11/8,485.36
  6. Step 6: Final answer
    x = 6,826.01

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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.