Home / 9,631.80-14,438.10-4,428.60

Finding the Fourth Proportional to 9,631.80, 14,438.10 and 4,428.60

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Solution

The fourth proportional to 9,631.80, 14,438.10 and 4,428.60 is: 6,638.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,631.80 : 14,438.10 = 4,428.60 : x
  2. Step 2: Convert to fraction form
    9,631.80/14,438.10 = 4,428.60/x
  3. Step 3: Cross multiply
    9,631.80x = 14,438.10 × 4,428.60
  4. Step 4: Simplify right side
    9,631.80x = 63,940,569.66
  5. Step 5: Solve for x
    x = 63,940,569.66/9,631.80
  6. Step 6: Final answer
    x = 6,638.49

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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.