Home / 14,428.29-19,920.01-11,064.64

Finding the Fourth Proportional to 14,428.29, 19,920.01 and 11,064.64

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Solution

The fourth proportional to 14,428.29, 19,920.01 and 11,064.64 is: 15,276.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.29 : 19,920.01 = 11,064.64 : x
  2. Step 2: Convert to fraction form
    14,428.29/19,920.01 = 11,064.64/x
  3. Step 3: Cross multiply
    14,428.29x = 19,920.01 × 11,064.64
  4. Step 4: Simplify right side
    14,428.29x = 220,407,739.45
  5. Step 5: Solve for x
    x = 220,407,739.45/14,428.29
  6. Step 6: Final answer
    x = 15,276.08

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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.