Home / 14,106.79-21,162.99-6,315.67

Finding the Fourth Proportional to 14,106.79, 21,162.99 and 6,315.67

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Solution

The fourth proportional to 14,106.79, 21,162.99 and 6,315.67 is: 9,474.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106.79 : 21,162.99 = 6,315.67 : x
  2. Step 2: Convert to fraction form
    14,106.79/21,162.99 = 6,315.67/x
  3. Step 3: Cross multiply
    14,106.79x = 21,162.99 × 6,315.67
  4. Step 4: Simplify right side
    14,106.79x = 133,658,461.05
  5. Step 5: Solve for x
    x = 133,658,461.05/14,106.79
  6. Step 6: Final answer
    x = 9,474.76

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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.