Home / 14,098.31-21,148.90-5,215.99

Finding the Fourth Proportional to 14,098.31, 21,148.90 and 5,215.99

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Solution

The fourth proportional to 14,098.31, 21,148.90 and 5,215.99 is: 7,824.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,098.31 : 21,148.90 = 5,215.99 : x
  2. Step 2: Convert to fraction form
    14,098.31/21,148.90 = 5,215.99/x
  3. Step 3: Cross multiply
    14,098.31x = 21,148.90 × 5,215.99
  4. Step 4: Simplify right side
    14,098.31x = 110,312,385.00
  5. Step 5: Solve for x
    x = 110,312,385.00/14,098.31
  6. Step 6: Final answer
    x = 7,824.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.