Home / 18,039.51-27,045.29-12,476.77

Finding the Fourth Proportional to 18,039.51, 27,045.29 and 12,476.77

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Solution

The fourth proportional to 18,039.51, 27,045.29 and 12,476.77 is: 18,705.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,039.51 : 27,045.29 = 12,476.77 : x
  2. Step 2: Convert to fraction form
    18,039.51/27,045.29 = 12,476.77/x
  3. Step 3: Cross multiply
    18,039.51x = 27,045.29 × 12,476.77
  4. Step 4: Simplify right side
    18,039.51x = 337,437,826.49
  5. Step 5: Solve for x
    x = 337,437,826.49/18,039.51
  6. Step 6: Final answer
    x = 18,705.49

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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.