Home / 8,936.90-13,395.02-6,561.57

Finding the Fourth Proportional to 8,936.90, 13,395.02 and 6,561.57

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Solution

The fourth proportional to 8,936.90, 13,395.02 and 6,561.57 is: 9,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.90 : 13,395.02 = 6,561.57 : x
  2. Step 2: Convert to fraction form
    8,936.90/13,395.02 = 6,561.57/x
  3. Step 3: Cross multiply
    8,936.90x = 13,395.02 × 6,561.57
  4. Step 4: Simplify right side
    8,936.90x = 87,892,328.57
  5. Step 5: Solve for x
    x = 87,892,328.57/8,936.90
  6. Step 6: Final answer
    x = 9,834.77

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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.