Home / 14,014.29-19,339.73-7,640.91

Finding the Fourth Proportional to 14,014.29, 19,339.73 and 7,640.91

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Solution

The fourth proportional to 14,014.29, 19,339.73 and 7,640.91 is: 10,544.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,014.29 : 19,339.73 = 7,640.91 : x
  2. Step 2: Convert to fraction form
    14,014.29/19,339.73 = 7,640.91/x
  3. Step 3: Cross multiply
    14,014.29x = 19,339.73 × 7,640.91
  4. Step 4: Simplify right side
    14,014.29x = 147,773,136.35
  5. Step 5: Solve for x
    x = 147,773,136.35/14,014.29
  6. Step 6: Final answer
    x = 10,544.46

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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.