Home / 13,352.16-20,030.40-5,561.76

Finding the Fourth Proportional to 13,352.16, 20,030.40 and 5,561.76

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Solution

The fourth proportional to 13,352.16, 20,030.40 and 5,561.76 is: 8,343.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.16 : 20,030.40 = 5,561.76 : x
  2. Step 2: Convert to fraction form
    13,352.16/20,030.40 = 5,561.76/x
  3. Step 3: Cross multiply
    13,352.16x = 20,030.40 × 5,561.76
  4. Step 4: Simplify right side
    13,352.16x = 111,404,277.50
  5. Step 5: Solve for x
    x = 111,404,277.50/13,352.16
  6. Step 6: Final answer
    x = 8,343.54

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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.