Home / 13,731.36-18,948.64-8,698.24

Finding the Fourth Proportional to 13,731.36, 18,948.64 and 8,698.24

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Solution

The fourth proportional to 13,731.36, 18,948.64 and 8,698.24 is: 12,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.36 : 18,948.64 = 8,698.24 : x
  2. Step 2: Convert to fraction form
    13,731.36/18,948.64 = 8,698.24/x
  3. Step 3: Cross multiply
    13,731.36x = 18,948.64 × 8,698.24
  4. Step 4: Simplify right side
    13,731.36x = 164,819,818.39
  5. Step 5: Solve for x
    x = 164,819,818.39/13,731.36
  6. Step 6: Final answer
    x = 12,003.17

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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.