Home / 13,269.60-18,338.40-10,612.80

Finding the Fourth Proportional to 13,269.60, 18,338.40 and 10,612.80

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Solution

The fourth proportional to 13,269.60, 18,338.40 and 10,612.80 is: 14,666.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.60 : 18,338.40 = 10,612.80 : x
  2. Step 2: Convert to fraction form
    13,269.60/18,338.40 = 10,612.80/x
  3. Step 3: Cross multiply
    13,269.60x = 18,338.40 × 10,612.80
  4. Step 4: Simplify right side
    13,269.60x = 194,621,771.52
  5. Step 5: Solve for x
    x = 194,621,771.52/13,269.60
  6. Step 6: Final answer
    x = 14,666.74

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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.