Home / 18,708.51-25,816.71-10,641.08

Finding the Fourth Proportional to 18,708.51, 25,816.71 and 10,641.08

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Solution

The fourth proportional to 18,708.51, 25,816.71 and 10,641.08 is: 14,684.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708.51 : 25,816.71 = 10,641.08 : x
  2. Step 2: Convert to fraction form
    18,708.51/25,816.71 = 10,641.08/x
  3. Step 3: Cross multiply
    18,708.51x = 25,816.71 × 10,641.08
  4. Step 4: Simplify right side
    18,708.51x = 274,717,575.82
  5. Step 5: Solve for x
    x = 274,717,575.82/18,708.51
  6. Step 6: Final answer
    x = 14,684.10

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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.