Home / 11,526.60-15,907.46-8,688.96

Finding the Fourth Proportional to 11,526.60, 15,907.46 and 8,688.96

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Solution

The fourth proportional to 11,526.60, 15,907.46 and 8,688.96 is: 11,991.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,526.60 : 15,907.46 = 8,688.96 : x
  2. Step 2: Convert to fraction form
    11,526.60/15,907.46 = 8,688.96/x
  3. Step 3: Cross multiply
    11,526.60x = 15,907.46 × 8,688.96
  4. Step 4: Simplify right side
    11,526.60x = 138,219,279.97
  5. Step 5: Solve for x
    x = 138,219,279.97/11,526.60
  6. Step 6: Final answer
    x = 11,991.34

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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.