Home / 19,475.08-26,866.81-11,918.39

Finding the Fourth Proportional to 19,475.08, 26,866.81 and 11,918.39

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Solution

The fourth proportional to 19,475.08, 26,866.81 and 11,918.39 is: 16,441.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,475.08 : 26,866.81 = 11,918.39 : x
  2. Step 2: Convert to fraction form
    19,475.08/26,866.81 = 11,918.39/x
  3. Step 3: Cross multiply
    19,475.08x = 26,866.81 × 11,918.39
  4. Step 4: Simplify right side
    19,475.08x = 320,208,955.51
  5. Step 5: Solve for x
    x = 320,208,955.51/19,475.08
  6. Step 6: Final answer
    x = 16,441.99

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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.