Home / 13,497.60-20,221.02-9,107.40

Finding the Fourth Proportional to 13,497.60, 20,221.02 and 9,107.40

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Solution

The fourth proportional to 13,497.60, 20,221.02 and 9,107.40 is: 13,643.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,497.60 : 20,221.02 = 9,107.40 : x
  2. Step 2: Convert to fraction form
    13,497.60/20,221.02 = 9,107.40/x
  3. Step 3: Cross multiply
    13,497.60x = 20,221.02 × 9,107.40
  4. Step 4: Simplify right side
    13,497.60x = 184,160,917.55
  5. Step 5: Solve for x
    x = 184,160,917.55/13,497.60
  6. Step 6: Final answer
    x = 13,643.98

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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.