Home / 8,555.12-11,807.46-4,970.18

Finding the Fourth Proportional to 8,555.12, 11,807.46 and 4,970.18

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Solution

The fourth proportional to 8,555.12, 11,807.46 and 4,970.18 is: 6,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.12 : 11,807.46 = 4,970.18 : x
  2. Step 2: Convert to fraction form
    8,555.12/11,807.46 = 4,970.18/x
  3. Step 3: Cross multiply
    8,555.12x = 11,807.46 × 4,970.18
  4. Step 4: Simplify right side
    8,555.12x = 58,685,201.54
  5. Step 5: Solve for x
    x = 58,685,201.54/8,555.12
  6. Step 6: Final answer
    x = 6,859.66

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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.