Home / 13,495.60-20,218.02-9,105.40

Finding the Fourth Proportional to 13,495.60, 20,218.02 and 9,105.40

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Solution

The fourth proportional to 13,495.60, 20,218.02 and 9,105.40 is: 13,640.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,495.60 : 20,218.02 = 9,105.40 : x
  2. Step 2: Convert to fraction form
    13,495.60/20,218.02 = 9,105.40/x
  3. Step 3: Cross multiply
    13,495.60x = 20,218.02 × 9,105.40
  4. Step 4: Simplify right side
    13,495.60x = 184,093,159.31
  5. Step 5: Solve for x
    x = 184,093,159.31/13,495.60
  6. Step 6: Final answer
    x = 13,640.98

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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.