Home / 14,018.45-19,355.18-8,715.65

Finding the Fourth Proportional to 14,018.45, 19,355.18 and 8,715.65

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Solution

The fourth proportional to 14,018.45, 19,355.18 and 8,715.65 is: 12,033.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,018.45 : 19,355.18 = 8,715.65 : x
  2. Step 2: Convert to fraction form
    14,018.45/19,355.18 = 8,715.65/x
  3. Step 3: Cross multiply
    14,018.45x = 19,355.18 × 8,715.65
  4. Step 4: Simplify right side
    14,018.45x = 168,692,834.21
  5. Step 5: Solve for x
    x = 168,692,834.21/14,018.45
  6. Step 6: Final answer
    x = 12,033.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.