Home / 15,018.60-20,724.83-8,303.83

Finding the Fourth Proportional to 15,018.60, 20,724.83 and 8,303.83

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Solution

The fourth proportional to 15,018.60, 20,724.83 and 8,303.83 is: 11,458.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018.60 : 20,724.83 = 8,303.83 : x
  2. Step 2: Convert to fraction form
    15,018.60/20,724.83 = 8,303.83/x
  3. Step 3: Cross multiply
    15,018.60x = 20,724.83 × 8,303.83
  4. Step 4: Simplify right side
    15,018.60x = 172,095,465.10
  5. Step 5: Solve for x
    x = 172,095,465.10/15,018.60
  6. Step 6: Final answer
    x = 11,458.82

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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.