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Finding the Fourth Proportional to 9,990.93, 14,980.87 and 6,285.23

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Solution

The fourth proportional to 9,990.93, 14,980.87 and 6,285.23 is: 9,424.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.93 : 14,980.87 = 6,285.23 : x
  2. Step 2: Convert to fraction form
    9,990.93/14,980.87 = 6,285.23/x
  3. Step 3: Cross multiply
    9,990.93x = 14,980.87 × 6,285.23
  4. Step 4: Simplify right side
    9,990.93x = 94,158,138.65
  5. Step 5: Solve for x
    x = 94,158,138.65/9,990.93
  6. Step 6: Final answer
    x = 9,424.37

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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.