Home / 15,622.16-21,563.10-8,911.44

Finding the Fourth Proportional to 15,622.16, 21,563.10 and 8,911.44

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Solution

The fourth proportional to 15,622.16, 21,563.10 and 8,911.44 is: 12,300.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.16 : 21,563.10 = 8,911.44 : x
  2. Step 2: Convert to fraction form
    15,622.16/21,563.10 = 8,911.44/x
  3. Step 3: Cross multiply
    15,622.16x = 21,563.10 × 8,911.44
  4. Step 4: Simplify right side
    15,622.16x = 192,158,271.86
  5. Step 5: Solve for x
    x = 192,158,271.86/15,622.16
  6. Step 6: Final answer
    x = 12,300.37

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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.