Home / 19,187.53-28,728.15-9,807.35

Finding the Fourth Proportional to 19,187.53, 28,728.15 and 9,807.35

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Solution

The fourth proportional to 19,187.53, 28,728.15 and 9,807.35 is: 14,683.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187.53 : 28,728.15 = 9,807.35 : x
  2. Step 2: Convert to fraction form
    19,187.53/28,728.15 = 9,807.35/x
  3. Step 3: Cross multiply
    19,187.53x = 28,728.15 × 9,807.35
  4. Step 4: Simplify right side
    19,187.53x = 281,747,021.90
  5. Step 5: Solve for x
    x = 281,747,021.90/19,187.53
  6. Step 6: Final answer
    x = 14,683.86

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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.