Home / 13,039.44-19,521.84-8,648.16

Finding the Fourth Proportional to 13,039.44, 19,521.84 and 8,648.16

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Solution

The fourth proportional to 13,039.44, 19,521.84 and 8,648.16 is: 12,947.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.44 : 19,521.84 = 8,648.16 : x
  2. Step 2: Convert to fraction form
    13,039.44/19,521.84 = 8,648.16/x
  3. Step 3: Cross multiply
    13,039.44x = 19,521.84 × 8,648.16
  4. Step 4: Simplify right side
    13,039.44x = 168,827,995.81
  5. Step 5: Solve for x
    x = 168,827,995.81/13,039.44
  6. Step 6: Final answer
    x = 12,947.49

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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.