Home / 19,021.29-26,240.53-12,309.08

Finding the Fourth Proportional to 19,021.29, 26,240.53 and 12,309.08

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Solution

The fourth proportional to 19,021.29, 26,240.53 and 12,309.08 is: 16,980.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,021.29 : 26,240.53 = 12,309.08 : x
  2. Step 2: Convert to fraction form
    19,021.29/26,240.53 = 12,309.08/x
  3. Step 3: Cross multiply
    19,021.29x = 26,240.53 × 12,309.08
  4. Step 4: Simplify right side
    19,021.29x = 322,996,817.84
  5. Step 5: Solve for x
    x = 322,996,817.84/19,021.29
  6. Step 6: Final answer
    x = 16,980.81

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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.