Home / 11,688.18-17,555.87-7,017.08

Finding the Fourth Proportional to 11,688.18, 17,555.87 and 7,017.08

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Solution

The fourth proportional to 11,688.18, 17,555.87 and 7,017.08 is: 10,539.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.18 : 17,555.87 = 7,017.08 : x
  2. Step 2: Convert to fraction form
    11,688.18/17,555.87 = 7,017.08/x
  3. Step 3: Cross multiply
    11,688.18x = 17,555.87 × 7,017.08
  4. Step 4: Simplify right side
    11,688.18x = 123,190,944.26
  5. Step 5: Solve for x
    x = 123,190,944.26/11,688.18
  6. Step 6: Final answer
    x = 10,539.79

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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.