Home / 15,856.33-21,837.60-12,258.04

Finding the Fourth Proportional to 15,856.33, 21,837.60 and 12,258.04

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Solution

The fourth proportional to 15,856.33, 21,837.60 and 12,258.04 is: 16,881.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,856.33 : 21,837.60 = 12,258.04 : x
  2. Step 2: Convert to fraction form
    15,856.33/21,837.60 = 12,258.04/x
  3. Step 3: Cross multiply
    15,856.33x = 21,837.60 × 12,258.04
  4. Step 4: Simplify right side
    15,856.33x = 267,686,174.30
  5. Step 5: Solve for x
    x = 267,686,174.30/15,856.33
  6. Step 6: Final answer
    x = 16,881.98

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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.