Home / 15,921.59-21,972.08-8,848.67

Finding the Fourth Proportional to 15,921.59, 21,972.08 and 8,848.67

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Solution

The fourth proportional to 15,921.59, 21,972.08 and 8,848.67 is: 12,211.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921.59 : 21,972.08 = 8,848.67 : x
  2. Step 2: Convert to fraction form
    15,921.59/21,972.08 = 8,848.67/x
  3. Step 3: Cross multiply
    15,921.59x = 21,972.08 × 8,848.67
  4. Step 4: Simplify right side
    15,921.59x = 194,423,597.39
  5. Step 5: Solve for x
    x = 194,423,597.39/15,921.59
  6. Step 6: Final answer
    x = 12,211.32

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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.