Home / 12,641.63-18,962.93-3,281.41

Finding the Fourth Proportional to 12,641.63, 18,962.93 and 3,281.41

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Solution

The fourth proportional to 12,641.63, 18,962.93 and 3,281.41 is: 4,922.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641.63 : 18,962.93 = 3,281.41 : x
  2. Step 2: Convert to fraction form
    12,641.63/18,962.93 = 3,281.41/x
  3. Step 3: Cross multiply
    12,641.63x = 18,962.93 × 3,281.41
  4. Step 4: Simplify right side
    12,641.63x = 62,225,084.32
  5. Step 5: Solve for x
    x = 62,225,084.32/12,641.63
  6. Step 6: Final answer
    x = 4,922.23

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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.