Home / 13,153.78-19,730.67-5,363.20

Finding the Fourth Proportional to 13,153.78, 19,730.67 and 5,363.20

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Solution

The fourth proportional to 13,153.78, 19,730.67 and 5,363.20 is: 8,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.78 : 19,730.67 = 5,363.20 : x
  2. Step 2: Convert to fraction form
    13,153.78/19,730.67 = 5,363.20/x
  3. Step 3: Cross multiply
    13,153.78x = 19,730.67 × 5,363.20
  4. Step 4: Simplify right side
    13,153.78x = 105,819,529.34
  5. Step 5: Solve for x
    x = 105,819,529.34/13,153.78
  6. Step 6: Final answer
    x = 8,044.80

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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.