Home / 10,786.98-14,885.88-6,071.28

Finding the Fourth Proportional to 10,786.98, 14,885.88 and 6,071.28

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Solution

The fourth proportional to 10,786.98, 14,885.88 and 6,071.28 is: 8,378.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,786.98 : 14,885.88 = 6,071.28 : x
  2. Step 2: Convert to fraction form
    10,786.98/14,885.88 = 6,071.28/x
  3. Step 3: Cross multiply
    10,786.98x = 14,885.88 × 6,071.28
  4. Step 4: Simplify right side
    10,786.98x = 90,376,345.53
  5. Step 5: Solve for x
    x = 90,376,345.53/10,786.98
  6. Step 6: Final answer
    x = 8,378.28

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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.