Home / 12,837.10-19,220.88-6,668.14

Finding the Fourth Proportional to 12,837.10, 19,220.88 and 6,668.14

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Solution

The fourth proportional to 12,837.10, 19,220.88 and 6,668.14 is: 9,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.10 : 19,220.88 = 6,668.14 : x
  2. Step 2: Convert to fraction form
    12,837.10/19,220.88 = 6,668.14/x
  3. Step 3: Cross multiply
    12,837.10x = 19,220.88 × 6,668.14
  4. Step 4: Simplify right side
    12,837.10x = 128,167,518.76
  5. Step 5: Solve for x
    x = 128,167,518.76/12,837.10
  6. Step 6: Final answer
    x = 9,984.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.