Home / 15,883.45-21,919.76-8,712.93

Finding the Fourth Proportional to 15,883.45, 21,919.76 and 8,712.93

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Solution

The fourth proportional to 15,883.45, 21,919.76 and 8,712.93 is: 12,024.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,883.45 : 21,919.76 = 8,712.93 : x
  2. Step 2: Convert to fraction form
    15,883.45/21,919.76 = 8,712.93/x
  3. Step 3: Cross multiply
    15,883.45x = 21,919.76 × 8,712.93
  4. Step 4: Simplify right side
    15,883.45x = 190,985,181.33
  5. Step 5: Solve for x
    x = 190,985,181.33/15,883.45
  6. Step 6: Final answer
    x = 12,024.16

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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.