Home / 13,309.16-19,967.16-4,989.30

Finding the Fourth Proportional to 13,309.16, 19,967.16 and 4,989.30

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Solution

The fourth proportional to 13,309.16, 19,967.16 and 4,989.30 is: 7,485.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.16 : 19,967.16 = 4,989.30 : x
  2. Step 2: Convert to fraction form
    13,309.16/19,967.16 = 4,989.30/x
  3. Step 3: Cross multiply
    13,309.16x = 19,967.16 × 4,989.30
  4. Step 4: Simplify right side
    13,309.16x = 99,622,151.39
  5. Step 5: Solve for x
    x = 99,622,151.39/13,309.16
  6. Step 6: Final answer
    x = 7,485.23

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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.