Home / 10,564.18-15,828.72-7,437.64

Finding the Fourth Proportional to 10,564.18, 15,828.72 and 7,437.64

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Solution

The fourth proportional to 10,564.18, 15,828.72 and 7,437.64 is: 11,144.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,564.18 : 15,828.72 = 7,437.64 : x
  2. Step 2: Convert to fraction form
    10,564.18/15,828.72 = 7,437.64/x
  3. Step 3: Cross multiply
    10,564.18x = 15,828.72 × 7,437.64
  4. Step 4: Simplify right side
    10,564.18x = 117,728,321.02
  5. Step 5: Solve for x
    x = 117,728,321.02/10,564.18
  6. Step 6: Final answer
    x = 11,144.10

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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.