Home / 14,315.29-21,449.59-7,285.65

Finding the Fourth Proportional to 14,315.29, 21,449.59 and 7,285.65

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Solution

The fourth proportional to 14,315.29, 21,449.59 and 7,285.65 is: 10,916.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,315.29 : 21,449.59 = 7,285.65 : x
  2. Step 2: Convert to fraction form
    14,315.29/21,449.59 = 7,285.65/x
  3. Step 3: Cross multiply
    14,315.29x = 21,449.59 × 7,285.65
  4. Step 4: Simplify right side
    14,315.29x = 156,274,205.38
  5. Step 5: Solve for x
    x = 156,274,205.38/14,315.29
  6. Step 6: Final answer
    x = 10,916.59

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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.