Home / 13,567.04-20,334.36-7,715.60

Finding the Fourth Proportional to 13,567.04, 20,334.36 and 7,715.60

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Solution

The fourth proportional to 13,567.04, 20,334.36 and 7,715.60 is: 11,564.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.04 : 20,334.36 = 7,715.60 : x
  2. Step 2: Convert to fraction form
    13,567.04/20,334.36 = 7,715.60/x
  3. Step 3: Cross multiply
    13,567.04x = 20,334.36 × 7,715.60
  4. Step 4: Simplify right side
    13,567.04x = 156,891,788.02
  5. Step 5: Solve for x
    x = 156,891,788.02/13,567.04
  6. Step 6: Final answer
    x = 11,564.19

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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.