Home / 18,903.95-28,360.16-5,757.35

Finding the Fourth Proportional to 18,903.95, 28,360.16 and 5,757.35

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Solution

The fourth proportional to 18,903.95, 28,360.16 and 5,757.35 is: 8,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.95 : 28,360.16 = 5,757.35 : x
  2. Step 2: Convert to fraction form
    18,903.95/28,360.16 = 5,757.35/x
  3. Step 3: Cross multiply
    18,903.95x = 28,360.16 × 5,757.35
  4. Step 4: Simplify right side
    18,903.95x = 163,279,196.59
  5. Step 5: Solve for x
    x = 163,279,196.59/18,903.95
  6. Step 6: Final answer
    x = 8,637.31

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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.