Home / 15,290.59-21,099.32-8,574.83

Finding the Fourth Proportional to 15,290.59, 21,099.32 and 8,574.83

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Solution

The fourth proportional to 15,290.59, 21,099.32 and 8,574.83 is: 11,832.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290.59 : 21,099.32 = 8,574.83 : x
  2. Step 2: Convert to fraction form
    15,290.59/21,099.32 = 8,574.83/x
  3. Step 3: Cross multiply
    15,290.59x = 21,099.32 × 8,574.83
  4. Step 4: Simplify right side
    15,290.59x = 180,922,933.74
  5. Step 5: Solve for x
    x = 180,922,933.74/15,290.59
  6. Step 6: Final answer
    x = 11,832.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.