Home / 10,786.14-14,885.12-6,312.47

Finding the Fourth Proportional to 10,786.14, 14,885.12 and 6,312.47

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Solution

The fourth proportional to 10,786.14, 14,885.12 and 6,312.47 is: 8,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,786.14 : 14,885.12 = 6,312.47 : x
  2. Step 2: Convert to fraction form
    10,786.14/14,885.12 = 6,312.47/x
  3. Step 3: Cross multiply
    10,786.14x = 14,885.12 × 6,312.47
  4. Step 4: Simplify right side
    10,786.14x = 93,961,767.46
  5. Step 5: Solve for x
    x = 93,961,767.46/10,786.14
  6. Step 6: Final answer
    x = 8,711.34

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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.