Home / 12,802.89-19,212.45-5,011.50

Finding the Fourth Proportional to 12,802.89, 19,212.45 and 5,011.50

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Solution

The fourth proportional to 12,802.89, 19,212.45 and 5,011.50 is: 7,520.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,802.89 : 19,212.45 = 5,011.50 : x
  2. Step 2: Convert to fraction form
    12,802.89/19,212.45 = 5,011.50/x
  3. Step 3: Cross multiply
    12,802.89x = 19,212.45 × 5,011.50
  4. Step 4: Simplify right side
    12,802.89x = 96,283,193.18
  5. Step 5: Solve for x
    x = 96,283,193.18/12,802.89
  6. Step 6: Final answer
    x = 7,520.43

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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.