Home / 15,618.94-21,554.58-8,545.81

Finding the Fourth Proportional to 15,618.94, 21,554.58 and 8,545.81

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Solution

The fourth proportional to 15,618.94, 21,554.58 and 8,545.81 is: 11,793.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.94 : 21,554.58 = 8,545.81 : x
  2. Step 2: Convert to fraction form
    15,618.94/21,554.58 = 8,545.81/x
  3. Step 3: Cross multiply
    15,618.94x = 21,554.58 × 8,545.81
  4. Step 4: Simplify right side
    15,618.94x = 184,201,345.31
  5. Step 5: Solve for x
    x = 184,201,345.31/15,618.94
  6. Step 6: Final answer
    x = 11,793.46

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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.