Home / 14,280.60-21,399.30-12,077.40

Finding the Fourth Proportional to 14,280.60, 21,399.30 and 12,077.40

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Solution

The fourth proportional to 14,280.60, 21,399.30 and 12,077.40 is: 18,097.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.60 : 21,399.30 = 12,077.40 : x
  2. Step 2: Convert to fraction form
    14,280.60/21,399.30 = 12,077.40/x
  3. Step 3: Cross multiply
    14,280.60x = 21,399.30 × 12,077.40
  4. Step 4: Simplify right side
    14,280.60x = 258,447,905.82
  5. Step 5: Solve for x
    x = 258,447,905.82/14,280.60
  6. Step 6: Final answer
    x = 18,097.83

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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.