Home / 8,730.54-13,091.36-4,288.50

Finding the Fourth Proportional to 8,730.54, 13,091.36 and 4,288.50

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Solution

The fourth proportional to 8,730.54, 13,091.36 and 4,288.50 is: 6,430.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.54 : 13,091.36 = 4,288.50 : x
  2. Step 2: Convert to fraction form
    8,730.54/13,091.36 = 4,288.50/x
  3. Step 3: Cross multiply
    8,730.54x = 13,091.36 × 4,288.50
  4. Step 4: Simplify right side
    8,730.54x = 56,142,275.92
  5. Step 5: Solve for x
    x = 56,142,275.92/8,730.54
  6. Step 6: Final answer
    x = 6,430.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.