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Finding the Fourth Proportional to 8,666.93, 13,000.08 and 3,119.03

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Solution

The fourth proportional to 8,666.93, 13,000.08 and 3,119.03 is: 4,678.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.93 : 13,000.08 = 3,119.03 : x
  2. Step 2: Convert to fraction form
    8,666.93/13,000.08 = 3,119.03/x
  3. Step 3: Cross multiply
    8,666.93x = 13,000.08 × 3,119.03
  4. Step 4: Simplify right side
    8,666.93x = 40,547,639.52
  5. Step 5: Solve for x
    x = 40,547,639.52/8,666.93
  6. Step 6: Final answer
    x = 4,678.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.