Home / 18,904.95-28,361.66-5,758.35

Finding the Fourth Proportional to 18,904.95, 28,361.66 and 5,758.35

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Solution

The fourth proportional to 18,904.95, 28,361.66 and 5,758.35 is: 8,638.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.95 : 28,361.66 = 5,758.35 : x
  2. Step 2: Convert to fraction form
    18,904.95/28,361.66 = 5,758.35/x
  3. Step 3: Cross multiply
    18,904.95x = 28,361.66 × 5,758.35
  4. Step 4: Simplify right side
    18,904.95x = 163,316,364.86
  5. Step 5: Solve for x
    x = 163,316,364.86/18,904.95
  6. Step 6: Final answer
    x = 8,638.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.