Home / 13,316.37-19,955.53-9,778.62

Finding the Fourth Proportional to 13,316.37, 19,955.53 and 9,778.62

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Solution

The fourth proportional to 13,316.37, 19,955.53 and 9,778.62 is: 14,653.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.37 : 19,955.53 = 9,778.62 : x
  2. Step 2: Convert to fraction form
    13,316.37/19,955.53 = 9,778.62/x
  3. Step 3: Cross multiply
    13,316.37x = 19,955.53 × 9,778.62
  4. Step 4: Simplify right side
    13,316.37x = 195,137,590.57
  5. Step 5: Solve for x
    x = 195,137,590.57/13,316.37
  6. Step 6: Final answer
    x = 14,653.96

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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.