Home / 6,987.21-10,448.42-5,409.33

Finding the Fourth Proportional to 6,987.21, 10,448.42 and 5,409.33

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Solution

The fourth proportional to 6,987.21, 10,448.42 and 5,409.33 is: 8,088.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.21 : 10,448.42 = 5,409.33 : x
  2. Step 2: Convert to fraction form
    6,987.21/10,448.42 = 5,409.33/x
  3. Step 3: Cross multiply
    6,987.21x = 10,448.42 × 5,409.33
  4. Step 4: Simplify right side
    6,987.21x = 56,518,924.71
  5. Step 5: Solve for x
    x = 56,518,924.71/6,987.21
  6. Step 6: Final answer
    x = 8,088.91

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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.