Home / 12,045.60-18,068.48-3,280.59

Finding the Fourth Proportional to 12,045.60, 18,068.48 and 3,280.59

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Solution

The fourth proportional to 12,045.60, 18,068.48 and 3,280.59 is: 4,920.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.60 : 18,068.48 = 3,280.59 : x
  2. Step 2: Convert to fraction form
    12,045.60/18,068.48 = 3,280.59/x
  3. Step 3: Cross multiply
    12,045.60x = 18,068.48 × 3,280.59
  4. Step 4: Simplify right side
    12,045.60x = 59,275,258.40
  5. Step 5: Solve for x
    x = 59,275,258.40/12,045.60
  6. Step 6: Final answer
    x = 4,920.91

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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.