Home / 8,647.84-11,931.96-4,871.26

Finding the Fourth Proportional to 8,647.84, 11,931.96 and 4,871.26

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Solution

The fourth proportional to 8,647.84, 11,931.96 and 4,871.26 is: 6,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.84 : 11,931.96 = 4,871.26 : x
  2. Step 2: Convert to fraction form
    8,647.84/11,931.96 = 4,871.26/x
  3. Step 3: Cross multiply
    8,647.84x = 11,931.96 × 4,871.26
  4. Step 4: Simplify right side
    8,647.84x = 58,123,679.47
  5. Step 5: Solve for x
    x = 58,123,679.47/8,647.84
  6. Step 6: Final answer
    x = 6,721.18

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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.