Home / 19,009.60-28,511.70-6,530.20

Finding the Fourth Proportional to 19,009.60, 28,511.70 and 6,530.20

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Solution

The fourth proportional to 19,009.60, 28,511.70 and 6,530.20 is: 9,794.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009.60 : 28,511.70 = 6,530.20 : x
  2. Step 2: Convert to fraction form
    19,009.60/28,511.70 = 6,530.20/x
  3. Step 3: Cross multiply
    19,009.60x = 28,511.70 × 6,530.20
  4. Step 4: Simplify right side
    19,009.60x = 186,187,103.34
  5. Step 5: Solve for x
    x = 186,187,103.34/19,009.60
  6. Step 6: Final answer
    x = 9,794.37

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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.