Home / 14,213.30-19,614.51-7,840.17

Finding the Fourth Proportional to 14,213.30, 19,614.51 and 7,840.17

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Solution

The fourth proportional to 14,213.30, 19,614.51 and 7,840.17 is: 10,819.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,213.30 : 19,614.51 = 7,840.17 : x
  2. Step 2: Convert to fraction form
    14,213.30/19,614.51 = 7,840.17/x
  3. Step 3: Cross multiply
    14,213.30x = 19,614.51 × 7,840.17
  4. Step 4: Simplify right side
    14,213.30x = 153,781,053.67
  5. Step 5: Solve for x
    x = 153,781,053.67/14,213.30
  6. Step 6: Final answer
    x = 10,819.52

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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.