Home / 14,115.39-21,172.95-8,570.27

Finding the Fourth Proportional to 14,115.39, 21,172.95 and 8,570.27

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Solution

The fourth proportional to 14,115.39, 21,172.95 and 8,570.27 is: 12,855.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.39 : 21,172.95 = 8,570.27 : x
  2. Step 2: Convert to fraction form
    14,115.39/21,172.95 = 8,570.27/x
  3. Step 3: Cross multiply
    14,115.39x = 21,172.95 × 8,570.27
  4. Step 4: Simplify right side
    14,115.39x = 181,457,792.33
  5. Step 5: Solve for x
    x = 181,457,792.33/14,115.39
  6. Step 6: Final answer
    x = 12,855.32

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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.