Home / 18,688.94-28,038.14-6,209.03

Finding the Fourth Proportional to 18,688.94, 28,038.14 and 6,209.03

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Solution

The fourth proportional to 18,688.94, 28,038.14 and 6,209.03 is: 9,315.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.94 : 28,038.14 = 6,209.03 : x
  2. Step 2: Convert to fraction form
    18,688.94/28,038.14 = 6,209.03/x
  3. Step 3: Cross multiply
    18,688.94x = 28,038.14 × 6,209.03
  4. Step 4: Simplify right side
    18,688.94x = 174,089,627.15
  5. Step 5: Solve for x
    x = 174,089,627.15/18,688.94
  6. Step 6: Final answer
    x = 9,315.12

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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.