Home / 11,339.58-15,647.90-6,303.40

Finding the Fourth Proportional to 11,339.58, 15,647.90 and 6,303.40

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Solution

The fourth proportional to 11,339.58, 15,647.90 and 6,303.40 is: 8,698.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.58 : 15,647.90 = 6,303.40 : x
  2. Step 2: Convert to fraction form
    11,339.58/15,647.90 = 6,303.40/x
  3. Step 3: Cross multiply
    11,339.58x = 15,647.90 × 6,303.40
  4. Step 4: Simplify right side
    11,339.58x = 98,634,972.86
  5. Step 5: Solve for x
    x = 98,634,972.86/11,339.58
  6. Step 6: Final answer
    x = 8,698.29

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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.