Home / 8,972.24-12,381.64-5,246.16

Finding the Fourth Proportional to 8,972.24, 12,381.64 and 5,246.16

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Solution

The fourth proportional to 8,972.24, 12,381.64 and 5,246.16 is: 7,239.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.24 : 12,381.64 = 5,246.16 : x
  2. Step 2: Convert to fraction form
    8,972.24/12,381.64 = 5,246.16/x
  3. Step 3: Cross multiply
    8,972.24x = 12,381.64 × 5,246.16
  4. Step 4: Simplify right side
    8,972.24x = 64,956,064.50
  5. Step 5: Solve for x
    x = 64,956,064.50/8,972.24
  6. Step 6: Final answer
    x = 7,239.67

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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.