Home / 15,258.98-21,050.39-9,211.52

Finding the Fourth Proportional to 15,258.98, 21,050.39 and 9,211.52

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Solution

The fourth proportional to 15,258.98, 21,050.39 and 9,211.52 is: 12,707.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,258.98 : 21,050.39 = 9,211.52 : x
  2. Step 2: Convert to fraction form
    15,258.98/21,050.39 = 9,211.52/x
  3. Step 3: Cross multiply
    15,258.98x = 21,050.39 × 9,211.52
  4. Step 4: Simplify right side
    15,258.98x = 193,906,088.49
  5. Step 5: Solve for x
    x = 193,906,088.49/15,258.98
  6. Step 6: Final answer
    x = 12,707.67

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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.