Home / 10,646.11-15,976.00-7,140.08

Finding the Fourth Proportional to 10,646.11, 15,976.00 and 7,140.08

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Solution

The fourth proportional to 10,646.11, 15,976.00 and 7,140.08 is: 10,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,646.11 : 15,976.00 = 7,140.08 : x
  2. Step 2: Convert to fraction form
    10,646.11/15,976.00 = 7,140.08/x
  3. Step 3: Cross multiply
    10,646.11x = 15,976.00 × 7,140.08
  4. Step 4: Simplify right side
    10,646.11x = 114,069,907.04
  5. Step 5: Solve for x
    x = 114,069,907.04/10,646.11
  6. Step 6: Final answer
    x = 10,714.70

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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.