Home / 8,985.63-12,399.39-5,006.67

Finding the Fourth Proportional to 8,985.63, 12,399.39 and 5,006.67

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Solution

The fourth proportional to 8,985.63, 12,399.39 and 5,006.67 is: 6,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.63 : 12,399.39 = 5,006.67 : x
  2. Step 2: Convert to fraction form
    8,985.63/12,399.39 = 5,006.67/x
  3. Step 3: Cross multiply
    8,985.63x = 12,399.39 × 5,006.67
  4. Step 4: Simplify right side
    8,985.63x = 62,079,653.93
  5. Step 5: Solve for x
    x = 62,079,653.93/8,985.63
  6. Step 6: Final answer
    x = 6,908.77

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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.