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Finding the Fourth Proportional to 8,959.34, 12,364.31 and 4,980.52

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Solution

The fourth proportional to 8,959.34, 12,364.31 and 4,980.52 is: 6,873.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.34 : 12,364.31 = 4,980.52 : x
  2. Step 2: Convert to fraction form
    8,959.34/12,364.31 = 4,980.52/x
  3. Step 3: Cross multiply
    8,959.34x = 12,364.31 × 4,980.52
  4. Step 4: Simplify right side
    8,959.34x = 61,580,623.58
  5. Step 5: Solve for x
    x = 61,580,623.58/8,959.34
  6. Step 6: Final answer
    x = 6,873.35

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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.