Home / 13,561.04-20,341.60-4,791.20

Finding the Fourth Proportional to 13,561.04, 20,341.60 and 4,791.20

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Solution

The fourth proportional to 13,561.04, 20,341.60 and 4,791.20 is: 7,186.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.04 : 20,341.60 = 4,791.20 : x
  2. Step 2: Convert to fraction form
    13,561.04/20,341.60 = 4,791.20/x
  3. Step 3: Cross multiply
    13,561.04x = 20,341.60 × 4,791.20
  4. Step 4: Simplify right side
    13,561.04x = 97,460,673.92
  5. Step 5: Solve for x
    x = 97,460,673.92/13,561.04
  6. Step 6: Final answer
    x = 7,186.81

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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.