Home / 18,258.08-25,211.51-11,555.53

Finding the Fourth Proportional to 18,258.08, 25,211.51 and 11,555.53

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Solution

The fourth proportional to 18,258.08, 25,211.51 and 11,555.53 is: 15,956.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.08 : 25,211.51 = 11,555.53 : x
  2. Step 2: Convert to fraction form
    18,258.08/25,211.51 = 11,555.53/x
  3. Step 3: Cross multiply
    18,258.08x = 25,211.51 × 11,555.53
  4. Step 4: Simplify right side
    18,258.08x = 291,332,331.26
  5. Step 5: Solve for x
    x = 291,332,331.26/18,258.08
  6. Step 6: Final answer
    x = 15,956.35

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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.