Home / 9,981.90-14,960.70-4,429.35

Finding the Fourth Proportional to 9,981.90, 14,960.70 and 4,429.35

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Solution

The fourth proportional to 9,981.90, 14,960.70 and 4,429.35 is: 6,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,981.90 : 14,960.70 = 4,429.35 : x
  2. Step 2: Convert to fraction form
    9,981.90/14,960.70 = 4,429.35/x
  3. Step 3: Cross multiply
    9,981.90x = 14,960.70 × 4,429.35
  4. Step 4: Simplify right side
    9,981.90x = 66,266,176.55
  5. Step 5: Solve for x
    x = 66,266,176.55/9,981.90
  6. Step 6: Final answer
    x = 6,638.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.