Home / 19,208.79-26,518.59-13,272.42

Finding the Fourth Proportional to 19,208.79, 26,518.59 and 13,272.42

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Solution

The fourth proportional to 19,208.79, 26,518.59 and 13,272.42 is: 18,323.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,208.79 : 26,518.59 = 13,272.42 : x
  2. Step 2: Convert to fraction form
    19,208.79/26,518.59 = 13,272.42/x
  3. Step 3: Cross multiply
    19,208.79x = 26,518.59 × 13,272.42
  4. Step 4: Simplify right side
    19,208.79x = 351,965,864.29
  5. Step 5: Solve for x
    x = 351,965,864.29/19,208.79
  6. Step 6: Final answer
    x = 18,323.17

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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.