Home / 13,988.36-19,303.38-8,015.90

Finding the Fourth Proportional to 13,988.36, 19,303.38 and 8,015.90

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Solution

The fourth proportional to 13,988.36, 19,303.38 and 8,015.90 is: 11,061.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.36 : 19,303.38 = 8,015.90 : x
  2. Step 2: Convert to fraction form
    13,988.36/19,303.38 = 8,015.90/x
  3. Step 3: Cross multiply
    13,988.36x = 19,303.38 × 8,015.90
  4. Step 4: Simplify right side
    13,988.36x = 154,733,867.23
  5. Step 5: Solve for x
    x = 154,733,867.23/13,988.36
  6. Step 6: Final answer
    x = 11,061.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.