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Finding the Fourth Proportional to 9,411, 14,117.31 and 2,485.50

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Solution

The fourth proportional to 9,411, 14,117.31 and 2,485.50 is: 3,728.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,411 : 14,117.31 = 2,485.50 : x
  2. Step 2: Convert to fraction form
    9,411/14,117.31 = 2,485.50/x
  3. Step 3: Cross multiply
    9,411x = 14,117.31 × 2,485.50
  4. Step 4: Simplify right side
    9,411x = 35,088,574.01
  5. Step 5: Solve for x
    x = 35,088,574.01/9,411
  6. Step 6: Final answer
    x = 3,728.46

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Double scale
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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.