Home / 13,715.60-20,567.49-5,277.02

Finding the Fourth Proportional to 13,715.60, 20,567.49 and 5,277.02

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Solution

The fourth proportional to 13,715.60, 20,567.49 and 5,277.02 is: 7,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.60 : 20,567.49 = 5,277.02 : x
  2. Step 2: Convert to fraction form
    13,715.60/20,567.49 = 5,277.02/x
  3. Step 3: Cross multiply
    13,715.60x = 20,567.49 × 5,277.02
  4. Step 4: Simplify right side
    13,715.60x = 108,534,933.45
  5. Step 5: Solve for x
    x = 108,534,933.45/13,715.60
  6. Step 6: Final answer
    x = 7,913.25

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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.