Home / 13,199.32-19,802.28-9,311.32

Finding the Fourth Proportional to 13,199.32, 19,802.28 and 9,311.32

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Solution

The fourth proportional to 13,199.32, 19,802.28 and 9,311.32 is: 13,969.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.32 : 19,802.28 = 9,311.32 : x
  2. Step 2: Convert to fraction form
    13,199.32/19,802.28 = 9,311.32/x
  3. Step 3: Cross multiply
    13,199.32x = 19,802.28 × 9,311.32
  4. Step 4: Simplify right side
    13,199.32x = 184,385,365.81
  5. Step 5: Solve for x
    x = 184,385,365.81/13,199.32
  6. Step 6: Final answer
    x = 13,969.31

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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.