Home / 12,068.40-16,662.16-9,835.62

Finding the Fourth Proportional to 12,068.40, 16,662.16 and 9,835.62

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Solution

The fourth proportional to 12,068.40, 16,662.16 and 9,835.62 is: 13,579.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,068.40 : 16,662.16 = 9,835.62 : x
  2. Step 2: Convert to fraction form
    12,068.40/16,662.16 = 9,835.62/x
  3. Step 3: Cross multiply
    12,068.40x = 16,662.16 × 9,835.62
  4. Step 4: Simplify right side
    12,068.40x = 163,882,674.14
  5. Step 5: Solve for x
    x = 163,882,674.14/12,068.40
  6. Step 6: Final answer
    x = 13,579.49

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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.