Home / 8,911.36-13,360.56-5,451.04

Finding the Fourth Proportional to 8,911.36, 13,360.56 and 5,451.04

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Solution

The fourth proportional to 8,911.36, 13,360.56 and 5,451.04 is: 8,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.36 : 13,360.56 = 5,451.04 : x
  2. Step 2: Convert to fraction form
    8,911.36/13,360.56 = 5,451.04/x
  3. Step 3: Cross multiply
    8,911.36x = 13,360.56 × 5,451.04
  4. Step 4: Simplify right side
    8,911.36x = 72,828,946.98
  5. Step 5: Solve for x
    x = 72,828,946.98/8,911.36
  6. Step 6: Final answer
    x = 8,172.60

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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.