Home / 12,606.12-18,919.26-5,681.16

Finding the Fourth Proportional to 12,606.12, 18,919.26 and 5,681.16

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Solution

The fourth proportional to 12,606.12, 18,919.26 and 5,681.16 is: 8,526.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606.12 : 18,919.26 = 5,681.16 : x
  2. Step 2: Convert to fraction form
    12,606.12/18,919.26 = 5,681.16/x
  3. Step 3: Cross multiply
    12,606.12x = 18,919.26 × 5,681.16
  4. Step 4: Simplify right side
    12,606.12x = 107,483,343.14
  5. Step 5: Solve for x
    x = 107,483,343.14/12,606.12
  6. Step 6: Final answer
    x = 8,526.28

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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.