Home / 15,426.31-21,288.32-8,352.74

Finding the Fourth Proportional to 15,426.31, 21,288.32 and 8,352.74

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Solution

The fourth proportional to 15,426.31, 21,288.32 and 8,352.74 is: 11,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,426.31 : 21,288.32 = 8,352.74 : x
  2. Step 2: Convert to fraction form
    15,426.31/21,288.32 = 8,352.74/x
  3. Step 3: Cross multiply
    15,426.31x = 21,288.32 × 8,352.74
  4. Step 4: Simplify right side
    15,426.31x = 177,815,802.00
  5. Step 5: Solve for x
    x = 177,815,802.00/15,426.31
  6. Step 6: Final answer
    x = 11,526.79

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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.