Home / 14,129.21-19,498.43-7,841.69

Finding the Fourth Proportional to 14,129.21, 19,498.43 and 7,841.69

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Solution

The fourth proportional to 14,129.21, 19,498.43 and 7,841.69 is: 10,821.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.21 : 19,498.43 = 7,841.69 : x
  2. Step 2: Convert to fraction form
    14,129.21/19,498.43 = 7,841.69/x
  3. Step 3: Cross multiply
    14,129.21x = 19,498.43 × 7,841.69
  4. Step 4: Simplify right side
    14,129.21x = 152,900,643.55
  5. Step 5: Solve for x
    x = 152,900,643.55/14,129.21
  6. Step 6: Final answer
    x = 10,821.60

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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.