Home / 13,100.16-19,650.24-5,309.12

Finding the Fourth Proportional to 13,100.16, 19,650.24 and 5,309.12

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Solution

The fourth proportional to 13,100.16, 19,650.24 and 5,309.12 is: 7,963.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.16 : 19,650.24 = 5,309.12 : x
  2. Step 2: Convert to fraction form
    13,100.16/19,650.24 = 5,309.12/x
  3. Step 3: Cross multiply
    13,100.16x = 19,650.24 × 5,309.12
  4. Step 4: Simplify right side
    13,100.16x = 104,325,482.19
  5. Step 5: Solve for x
    x = 104,325,482.19/13,100.16
  6. Step 6: Final answer
    x = 7,963.68

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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.