Home / 13,355.60-18,433.13-8,053.34

Finding the Fourth Proportional to 13,355.60, 18,433.13 and 8,053.34

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Solution

The fourth proportional to 13,355.60, 18,433.13 and 8,053.34 is: 11,115.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.60 : 18,433.13 = 8,053.34 : x
  2. Step 2: Convert to fraction form
    13,355.60/18,433.13 = 8,053.34/x
  3. Step 3: Cross multiply
    13,355.60x = 18,433.13 × 8,053.34
  4. Step 4: Simplify right side
    13,355.60x = 148,448,130.72
  5. Step 5: Solve for x
    x = 148,448,130.72/13,355.60
  6. Step 6: Final answer
    x = 11,115.05

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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.