Home / 13,312.15-19,966.11-4,426.74

Finding the Fourth Proportional to 13,312.15, 19,966.11 and 4,426.74

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Solution

The fourth proportional to 13,312.15, 19,966.11 and 4,426.74 is: 6,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.15 : 19,966.11 = 4,426.74 : x
  2. Step 2: Convert to fraction form
    13,312.15/19,966.11 = 4,426.74/x
  3. Step 3: Cross multiply
    13,312.15x = 19,966.11 × 4,426.74
  4. Step 4: Simplify right side
    13,312.15x = 88,384,755.65
  5. Step 5: Solve for x
    x = 88,384,755.65/13,312.15
  6. Step 6: Final answer
    x = 6,639.41

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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.