Home / 14,412.09-19,888.83-8,123.25

Finding the Fourth Proportional to 14,412.09, 19,888.83 and 8,123.25

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Solution

The fourth proportional to 14,412.09, 19,888.83 and 8,123.25 is: 11,210.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,412.09 : 19,888.83 = 8,123.25 : x
  2. Step 2: Convert to fraction form
    14,412.09/19,888.83 = 8,123.25/x
  3. Step 3: Cross multiply
    14,412.09x = 19,888.83 × 8,123.25
  4. Step 4: Simplify right side
    14,412.09x = 161,561,938.30
  5. Step 5: Solve for x
    x = 161,561,938.30/14,412.09
  6. Step 6: Final answer
    x = 11,210.17

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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.