Home / 14,427.20-19,902.24-13,289.60

Finding the Fourth Proportional to 14,427.20, 19,902.24 and 13,289.60

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Solution

The fourth proportional to 14,427.20, 19,902.24 and 13,289.60 is: 18,332.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,427.20 : 19,902.24 = 13,289.60 : x
  2. Step 2: Convert to fraction form
    14,427.20/19,902.24 = 13,289.60/x
  3. Step 3: Cross multiply
    14,427.20x = 19,902.24 × 13,289.60
  4. Step 4: Simplify right side
    14,427.20x = 264,492,808.70
  5. Step 5: Solve for x
    x = 264,492,808.70/14,427.20
  6. Step 6: Final answer
    x = 18,332.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.