Home / 14,012.89-19,337.65-7,639.30

Finding the Fourth Proportional to 14,012.89, 19,337.65 and 7,639.30

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Solution

The fourth proportional to 14,012.89, 19,337.65 and 7,639.30 is: 10,542.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,012.89 : 19,337.65 = 7,639.30 : x
  2. Step 2: Convert to fraction form
    14,012.89/19,337.65 = 7,639.30/x
  3. Step 3: Cross multiply
    14,012.89x = 19,337.65 × 7,639.30
  4. Step 4: Simplify right side
    14,012.89x = 147,726,109.65
  5. Step 5: Solve for x
    x = 147,726,109.65/14,012.89
  6. Step 6: Final answer
    x = 10,542.16

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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.