Home / 10,315.21-14,180.26-8,874.32

Finding the Fourth Proportional to 10,315.21, 14,180.26 and 8,874.32

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Solution

The fourth proportional to 10,315.21, 14,180.26 and 8,874.32 is: 12,199.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.21 : 14,180.26 = 8,874.32 : x
  2. Step 2: Convert to fraction form
    10,315.21/14,180.26 = 8,874.32/x
  3. Step 3: Cross multiply
    10,315.21x = 14,180.26 × 8,874.32
  4. Step 4: Simplify right side
    10,315.21x = 125,840,071.84
  5. Step 5: Solve for x
    x = 125,840,071.84/10,315.21
  6. Step 6: Final answer
    x = 12,199.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.