Home / 13,999.18-19,317.35-8,030.70

Finding the Fourth Proportional to 13,999.18, 19,317.35 and 8,030.70

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Solution

The fourth proportional to 13,999.18, 19,317.35 and 8,030.70 is: 11,081.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.18 : 19,317.35 = 8,030.70 : x
  2. Step 2: Convert to fraction form
    13,999.18/19,317.35 = 8,030.70/x
  3. Step 3: Cross multiply
    13,999.18x = 19,317.35 × 8,030.70
  4. Step 4: Simplify right side
    13,999.18x = 155,131,842.65
  5. Step 5: Solve for x
    x = 155,131,842.65/13,999.18
  6. Step 6: Final answer
    x = 11,081.49

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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.