Home / 12,011.78-16,574.28-6,705.74

Finding the Fourth Proportional to 12,011.78, 16,574.28 and 6,705.74

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Solution

The fourth proportional to 12,011.78, 16,574.28 and 6,705.74 is: 9,252.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.78 : 16,574.28 = 6,705.74 : x
  2. Step 2: Convert to fraction form
    12,011.78/16,574.28 = 6,705.74/x
  3. Step 3: Cross multiply
    12,011.78x = 16,574.28 × 6,705.74
  4. Step 4: Simplify right side
    12,011.78x = 111,142,812.37
  5. Step 5: Solve for x
    x = 111,142,812.37/12,011.78
  6. Step 6: Final answer
    x = 9,252.82

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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.