Home / 14,088.20-21,089.10-8,227.40

Finding the Fourth Proportional to 14,088.20, 21,089.10 and 8,227.40

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Solution

The fourth proportional to 14,088.20, 21,089.10 and 8,227.40 is: 12,315.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,088.20 : 21,089.10 = 8,227.40 : x
  2. Step 2: Convert to fraction form
    14,088.20/21,089.10 = 8,227.40/x
  3. Step 3: Cross multiply
    14,088.20x = 21,089.10 × 8,227.40
  4. Step 4: Simplify right side
    14,088.20x = 173,508,461.34
  5. Step 5: Solve for x
    x = 173,508,461.34/14,088.20
  6. Step 6: Final answer
    x = 12,315.87

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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.