Home / 13,530.84-20,295.45-5,631.36

Finding the Fourth Proportional to 13,530.84, 20,295.45 and 5,631.36

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Solution

The fourth proportional to 13,530.84, 20,295.45 and 5,631.36 is: 8,446.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.84 : 20,295.45 = 5,631.36 : x
  2. Step 2: Convert to fraction form
    13,530.84/20,295.45 = 5,631.36/x
  3. Step 3: Cross multiply
    13,530.84x = 20,295.45 × 5,631.36
  4. Step 4: Simplify right side
    13,530.84x = 114,290,985.31
  5. Step 5: Solve for x
    x = 114,290,985.31/13,530.84
  6. Step 6: Final answer
    x = 8,446.70

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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.