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Finding the Fourth Proportional to 8,484.70, 11,709.02 and 5,127.06

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Solution

The fourth proportional to 8,484.70, 11,709.02 and 5,127.06 is: 7,075.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484.70 : 11,709.02 = 5,127.06 : x
  2. Step 2: Convert to fraction form
    8,484.70/11,709.02 = 5,127.06/x
  3. Step 3: Cross multiply
    8,484.70x = 11,709.02 × 5,127.06
  4. Step 4: Simplify right side
    8,484.70x = 60,032,848.08
  5. Step 5: Solve for x
    x = 60,032,848.08/8,484.70
  6. Step 6: Final answer
    x = 7,075.42

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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.