Home / 18,686.76-25,787.59-10,303.26

Finding the Fourth Proportional to 18,686.76, 25,787.59 and 10,303.26

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Solution

The fourth proportional to 18,686.76, 25,787.59 and 10,303.26 is: 14,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.76 : 25,787.59 = 10,303.26 : x
  2. Step 2: Convert to fraction form
    18,686.76/25,787.59 = 10,303.26/x
  3. Step 3: Cross multiply
    18,686.76x = 25,787.59 × 10,303.26
  4. Step 4: Simplify right side
    18,686.76x = 265,696,244.54
  5. Step 5: Solve for x
    x = 265,696,244.54/18,686.76
  6. Step 6: Final answer
    x = 14,218.42

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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.