Home / 11,355.70-15,670.74-6,319.83

Finding the Fourth Proportional to 11,355.70, 15,670.74 and 6,319.83

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Solution

The fourth proportional to 11,355.70, 15,670.74 and 6,319.83 is: 8,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,355.70 : 15,670.74 = 6,319.83 : x
  2. Step 2: Convert to fraction form
    11,355.70/15,670.74 = 6,319.83/x
  3. Step 3: Cross multiply
    11,355.70x = 15,670.74 × 6,319.83
  4. Step 4: Simplify right side
    11,355.70x = 99,036,412.77
  5. Step 5: Solve for x
    x = 99,036,412.77/11,355.70
  6. Step 6: Final answer
    x = 8,721.30

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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.