Home / 11,140.13-15,362.73-6,663.13

Finding the Fourth Proportional to 11,140.13, 15,362.73 and 6,663.13

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Solution

The fourth proportional to 11,140.13, 15,362.73 and 6,663.13 is: 9,188.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.13 : 15,362.73 = 6,663.13 : x
  2. Step 2: Convert to fraction form
    11,140.13/15,362.73 = 6,663.13/x
  3. Step 3: Cross multiply
    11,140.13x = 15,362.73 × 6,663.13
  4. Step 4: Simplify right side
    11,140.13x = 102,363,828.74
  5. Step 5: Solve for x
    x = 102,363,828.74/11,140.13
  6. Step 6: Final answer
    x = 9,188.74

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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.