Home / 8,275.83-11,420.31-4,498.91

Finding the Fourth Proportional to 8,275.83, 11,420.31 and 4,498.91

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Solution

The fourth proportional to 8,275.83, 11,420.31 and 4,498.91 is: 6,208.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.83 : 11,420.31 = 4,498.91 : x
  2. Step 2: Convert to fraction form
    8,275.83/11,420.31 = 4,498.91/x
  3. Step 3: Cross multiply
    8,275.83x = 11,420.31 × 4,498.91
  4. Step 4: Simplify right side
    8,275.83x = 51,378,946.86
  5. Step 5: Solve for x
    x = 51,378,946.86/8,275.83
  6. Step 6: Final answer
    x = 6,208.31

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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.