Home / 18,838.95-28,263.62-8,317.35

Finding the Fourth Proportional to 18,838.95, 28,263.62 and 8,317.35

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Solution

The fourth proportional to 18,838.95, 28,263.62 and 8,317.35 is: 12,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.95 : 28,263.62 = 8,317.35 : x
  2. Step 2: Convert to fraction form
    18,838.95/28,263.62 = 8,317.35/x
  3. Step 3: Cross multiply
    18,838.95x = 28,263.62 × 8,317.35
  4. Step 4: Simplify right side
    18,838.95x = 235,078,419.81
  5. Step 5: Solve for x
    x = 235,078,419.81/18,838.95
  6. Step 6: Final answer
    x = 12,478.32

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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.