Home / 8,981.70-12,394.11-4,948.35

Finding the Fourth Proportional to 8,981.70, 12,394.11 and 4,948.35

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Solution

The fourth proportional to 8,981.70, 12,394.11 and 4,948.35 is: 6,828.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.70 : 12,394.11 = 4,948.35 : x
  2. Step 2: Convert to fraction form
    8,981.70/12,394.11 = 4,948.35/x
  3. Step 3: Cross multiply
    8,981.70x = 12,394.11 × 4,948.35
  4. Step 4: Simplify right side
    8,981.70x = 61,330,394.22
  5. Step 5: Solve for x
    x = 61,330,394.22/8,981.70
  6. Step 6: Final answer
    x = 6,828.37

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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.