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Finding the Fourth Proportional to 9,287.51, 13,931.10 and 3,740.71

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Solution

The fourth proportional to 9,287.51, 13,931.10 and 3,740.71 is: 5,611.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,287.51 : 13,931.10 = 3,740.71 : x
  2. Step 2: Convert to fraction form
    9,287.51/13,931.10 = 3,740.71/x
  3. Step 3: Cross multiply
    9,287.51x = 13,931.10 × 3,740.71
  4. Step 4: Simplify right side
    9,287.51x = 52,112,205.08
  5. Step 5: Solve for x
    x = 52,112,205.08/9,287.51
  6. Step 6: Final answer
    x = 5,611.00

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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.