Home / 13,188.51-19,782.86-5,397.32

Finding the Fourth Proportional to 13,188.51, 19,782.86 and 5,397.32

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Solution

The fourth proportional to 13,188.51, 19,782.86 and 5,397.32 is: 8,096.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.51 : 19,782.86 = 5,397.32 : x
  2. Step 2: Convert to fraction form
    13,188.51/19,782.86 = 5,397.32/x
  3. Step 3: Cross multiply
    13,188.51x = 19,782.86 × 5,397.32
  4. Step 4: Simplify right side
    13,188.51x = 106,774,448.41
  5. Step 5: Solve for x
    x = 106,774,448.41/13,188.51
  6. Step 6: Final answer
    x = 8,096.02

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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.