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Finding the Fourth Proportional to 8,686.85, 13,024.10 and 7,039.77

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Solution

The fourth proportional to 8,686.85, 13,024.10 and 7,039.77 is: 10,554.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.85 : 13,024.10 = 7,039.77 : x
  2. Step 2: Convert to fraction form
    8,686.85/13,024.10 = 7,039.77/x
  3. Step 3: Cross multiply
    8,686.85x = 13,024.10 × 7,039.77
  4. Step 4: Simplify right side
    8,686.85x = 91,686,603.34
  5. Step 5: Solve for x
    x = 91,686,603.34/8,686.85
  6. Step 6: Final answer
    x = 10,554.64

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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.