Home / 18,438.45-25,445.01-10,054.95

Finding the Fourth Proportional to 18,438.45, 25,445.01 and 10,054.95

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Solution

The fourth proportional to 18,438.45, 25,445.01 and 10,054.95 is: 13,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.45 : 25,445.01 = 10,054.95 : x
  2. Step 2: Convert to fraction form
    18,438.45/25,445.01 = 10,054.95/x
  3. Step 3: Cross multiply
    18,438.45x = 25,445.01 × 10,054.95
  4. Step 4: Simplify right side
    18,438.45x = 255,848,303.30
  5. Step 5: Solve for x
    x = 255,848,303.30/18,438.45
  6. Step 6: Final answer
    x = 13,875.80

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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.