Home / 13,495.39-20,237.21-7,168.89

Finding the Fourth Proportional to 13,495.39, 20,237.21 and 7,168.89

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Solution

The fourth proportional to 13,495.39, 20,237.21 and 7,168.89 is: 10,750.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,495.39 : 20,237.21 = 7,168.89 : x
  2. Step 2: Convert to fraction form
    13,495.39/20,237.21 = 7,168.89/x
  3. Step 3: Cross multiply
    13,495.39x = 20,237.21 × 7,168.89
  4. Step 4: Simplify right side
    13,495.39x = 145,078,332.40
  5. Step 5: Solve for x
    x = 145,078,332.40/13,495.39
  6. Step 6: Final answer
    x = 10,750.21

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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.