Home / 15,258.45-21,056.07-8,885.25

Finding the Fourth Proportional to 15,258.45, 21,056.07 and 8,885.25

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Solution

The fourth proportional to 15,258.45, 21,056.07 and 8,885.25 is: 12,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,258.45 : 21,056.07 = 8,885.25 : x
  2. Step 2: Convert to fraction form
    15,258.45/21,056.07 = 8,885.25/x
  3. Step 3: Cross multiply
    15,258.45x = 21,056.07 × 8,885.25
  4. Step 4: Simplify right side
    15,258.45x = 187,088,445.97
  5. Step 5: Solve for x
    x = 187,088,445.97/15,258.45
  6. Step 6: Final answer
    x = 12,261.30

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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.