Home / 15,994.79-22,073.27-8,921.67

Finding the Fourth Proportional to 15,994.79, 22,073.27 and 8,921.67

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Solution

The fourth proportional to 15,994.79, 22,073.27 and 8,921.67 is: 12,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,994.79 : 22,073.27 = 8,921.67 : x
  2. Step 2: Convert to fraction form
    15,994.79/22,073.27 = 8,921.67/x
  3. Step 3: Cross multiply
    15,994.79x = 22,073.27 × 8,921.67
  4. Step 4: Simplify right side
    15,994.79x = 196,930,386.15
  5. Step 5: Solve for x
    x = 196,930,386.15/15,994.79
  6. Step 6: Final answer
    x = 12,312.16

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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.