Home / 15,618.63-21,554.06-8,545.05

Finding the Fourth Proportional to 15,618.63, 21,554.06 and 8,545.05

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Solution

The fourth proportional to 15,618.63, 21,554.06 and 8,545.05 is: 11,792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.63 : 21,554.06 = 8,545.05 : x
  2. Step 2: Convert to fraction form
    15,618.63/21,554.06 = 8,545.05/x
  3. Step 3: Cross multiply
    15,618.63x = 21,554.06 × 8,545.05
  4. Step 4: Simplify right side
    15,618.63x = 184,180,477.68
  5. Step 5: Solve for x
    x = 184,180,477.68/15,618.63
  6. Step 6: Final answer
    x = 11,792.36

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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.