Home / 9,728.15-14,568.81-5,555.51

Finding the Fourth Proportional to 9,728.15, 14,568.81 and 5,555.51

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Solution

The fourth proportional to 9,728.15, 14,568.81 and 5,555.51 is: 8,319.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,728.15 : 14,568.81 = 5,555.51 : x
  2. Step 2: Convert to fraction form
    9,728.15/14,568.81 = 5,555.51/x
  3. Step 3: Cross multiply
    9,728.15x = 14,568.81 × 5,555.51
  4. Step 4: Simplify right side
    9,728.15x = 80,937,096.80
  5. Step 5: Solve for x
    x = 80,937,096.80/9,728.15
  6. Step 6: Final answer
    x = 8,319.89

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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.