Home / 18,687.08-25,787.52-10,303.52

Finding the Fourth Proportional to 18,687.08, 25,787.52 and 10,303.52

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Solution

The fourth proportional to 18,687.08, 25,787.52 and 10,303.52 is: 14,218.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687.08 : 25,787.52 = 10,303.52 : x
  2. Step 2: Convert to fraction form
    18,687.08/25,787.52 = 10,303.52/x
  3. Step 3: Cross multiply
    18,687.08x = 25,787.52 × 10,303.52
  4. Step 4: Simplify right side
    18,687.08x = 265,702,228.07
  5. Step 5: Solve for x
    x = 265,702,228.07/18,687.08
  6. Step 6: Final answer
    x = 14,218.50

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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.