Home / 14,458.60-21,666.30-12,255.40

Finding the Fourth Proportional to 14,458.60, 21,666.30 and 12,255.40

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Solution

The fourth proportional to 14,458.60, 21,666.30 and 12,255.40 is: 18,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,458.60 : 21,666.30 = 12,255.40 : x
  2. Step 2: Convert to fraction form
    14,458.60/21,666.30 = 12,255.40/x
  3. Step 3: Cross multiply
    14,458.60x = 21,666.30 × 12,255.40
  4. Step 4: Simplify right side
    14,458.60x = 265,529,173.02
  5. Step 5: Solve for x
    x = 265,529,173.02/14,458.60
  6. Step 6: Final answer
    x = 18,364.79

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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.