Home / 15,619.64-21,554.60-8,545.59

Finding the Fourth Proportional to 15,619.64, 21,554.60 and 8,545.59

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Solution

The fourth proportional to 15,619.64, 21,554.60 and 8,545.59 is: 11,792.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.64 : 21,554.60 = 8,545.59 : x
  2. Step 2: Convert to fraction form
    15,619.64/21,554.60 = 8,545.59/x
  3. Step 3: Cross multiply
    15,619.64x = 21,554.60 × 8,545.59
  4. Step 4: Simplify right side
    15,619.64x = 184,196,731.49
  5. Step 5: Solve for x
    x = 184,196,731.49/15,619.64
  6. Step 6: Final answer
    x = 11,792.64

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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.