Home / 15,612.67-21,545.34-8,539.14

Finding the Fourth Proportional to 15,612.67, 21,545.34 and 8,539.14

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Solution

The fourth proportional to 15,612.67, 21,545.34 and 8,539.14 is: 11,783.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.67 : 21,545.34 = 8,539.14 : x
  2. Step 2: Convert to fraction form
    15,612.67/21,545.34 = 8,539.14/x
  3. Step 3: Cross multiply
    15,612.67x = 21,545.34 × 8,539.14
  4. Step 4: Simplify right side
    15,612.67x = 183,978,674.61
  5. Step 5: Solve for x
    x = 183,978,674.61/15,612.67
  6. Step 6: Final answer
    x = 11,783.94

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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.