Home / 14,129.40-19,498.50-7,841.76

Finding the Fourth Proportional to 14,129.40, 19,498.50 and 7,841.76

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Solution

The fourth proportional to 14,129.40, 19,498.50 and 7,841.76 is: 10,821.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.40 : 19,498.50 = 7,841.76 : x
  2. Step 2: Convert to fraction form
    14,129.40/19,498.50 = 7,841.76/x
  3. Step 3: Cross multiply
    14,129.40x = 19,498.50 × 7,841.76
  4. Step 4: Simplify right side
    14,129.40x = 152,902,557.36
  5. Step 5: Solve for x
    x = 152,902,557.36/14,129.40
  6. Step 6: Final answer
    x = 10,821.59

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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.