Home / 8,172.02-11,275.15-4,985.84

Finding the Fourth Proportional to 8,172.02, 11,275.15 and 4,985.84

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Solution

The fourth proportional to 8,172.02, 11,275.15 and 4,985.84 is: 6,879.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.02 : 11,275.15 = 4,985.84 : x
  2. Step 2: Convert to fraction form
    8,172.02/11,275.15 = 4,985.84/x
  3. Step 3: Cross multiply
    8,172.02x = 11,275.15 × 4,985.84
  4. Step 4: Simplify right side
    8,172.02x = 56,216,055.53
  5. Step 5: Solve for x
    x = 56,216,055.53/8,172.02
  6. Step 6: Final answer
    x = 6,879.09

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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.