Home / 13,488.48-20,192.40-10,869.60

Finding the Fourth Proportional to 13,488.48, 20,192.40 and 10,869.60

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Solution

The fourth proportional to 13,488.48, 20,192.40 and 10,869.60 is: 16,271.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.48 : 20,192.40 = 10,869.60 : x
  2. Step 2: Convert to fraction form
    13,488.48/20,192.40 = 10,869.60/x
  3. Step 3: Cross multiply
    13,488.48x = 20,192.40 × 10,869.60
  4. Step 4: Simplify right side
    13,488.48x = 219,483,311.04
  5. Step 5: Solve for x
    x = 219,483,311.04/13,488.48
  6. Step 6: Final answer
    x = 16,271.91

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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.