Home / 13,018.72-17,946.48-10,219.36

Finding the Fourth Proportional to 13,018.72, 17,946.48 and 10,219.36

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Solution

The fourth proportional to 13,018.72, 17,946.48 and 10,219.36 is: 14,087.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.72 : 17,946.48 = 10,219.36 : x
  2. Step 2: Convert to fraction form
    13,018.72/17,946.48 = 10,219.36/x
  3. Step 3: Cross multiply
    13,018.72x = 17,946.48 × 10,219.36
  4. Step 4: Simplify right side
    13,018.72x = 183,401,539.85
  5. Step 5: Solve for x
    x = 183,401,539.85/13,018.72
  6. Step 6: Final answer
    x = 14,087.52

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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.