Home / 13,518.20-18,654.36-8,483.24

Finding the Fourth Proportional to 13,518.20, 18,654.36 and 8,483.24

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Solution

The fourth proportional to 13,518.20, 18,654.36 and 8,483.24 is: 11,706.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.20 : 18,654.36 = 8,483.24 : x
  2. Step 2: Convert to fraction form
    13,518.20/18,654.36 = 8,483.24/x
  3. Step 3: Cross multiply
    13,518.20x = 18,654.36 × 8,483.24
  4. Step 4: Simplify right side
    13,518.20x = 158,249,412.93
  5. Step 5: Solve for x
    x = 158,249,412.93/13,518.20
  6. Step 6: Final answer
    x = 11,706.40

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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.