Home / 14,187.95-21,280.43-6,290.60

Finding the Fourth Proportional to 14,187.95, 21,280.43 and 6,290.60

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Solution

The fourth proportional to 14,187.95, 21,280.43 and 6,290.60 is: 9,435.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.95 : 21,280.43 = 6,290.60 : x
  2. Step 2: Convert to fraction form
    14,187.95/21,280.43 = 6,290.60/x
  3. Step 3: Cross multiply
    14,187.95x = 21,280.43 × 6,290.60
  4. Step 4: Simplify right side
    14,187.95x = 133,866,741.89
  5. Step 5: Solve for x
    x = 133,866,741.89/14,187.95
  6. Step 6: Final answer
    x = 9,435.24

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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.