Home / 14,113.89-21,170.70-8,568.77

Finding the Fourth Proportional to 14,113.89, 21,170.70 and 8,568.77

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Solution

The fourth proportional to 14,113.89, 21,170.70 and 8,568.77 is: 12,853.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,113.89 : 21,170.70 = 8,568.77 : x
  2. Step 2: Convert to fraction form
    14,113.89/21,170.70 = 8,568.77/x
  3. Step 3: Cross multiply
    14,113.89x = 21,170.70 × 8,568.77
  4. Step 4: Simplify right side
    14,113.89x = 181,406,753.19
  5. Step 5: Solve for x
    x = 181,406,753.19/14,113.89
  6. Step 6: Final answer
    x = 12,853.07

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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.