Home / 15,484.84-21,369.48-8,770.37

Finding the Fourth Proportional to 15,484.84, 21,369.48 and 8,770.37

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Solution

The fourth proportional to 15,484.84, 21,369.48 and 8,770.37 is: 12,103.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484.84 : 21,369.48 = 8,770.37 : x
  2. Step 2: Convert to fraction form
    15,484.84/21,369.48 = 8,770.37/x
  3. Step 3: Cross multiply
    15,484.84x = 21,369.48 × 8,770.37
  4. Step 4: Simplify right side
    15,484.84x = 187,418,186.71
  5. Step 5: Solve for x
    x = 187,418,186.71/15,484.84
  6. Step 6: Final answer
    x = 12,103.33

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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.