Home / 13,106.93-19,565.36-12,131.32

Finding the Fourth Proportional to 13,106.93, 19,565.36 and 12,131.32

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Solution

The fourth proportional to 13,106.93, 19,565.36 and 12,131.32 is: 18,109.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.93 : 19,565.36 = 12,131.32 : x
  2. Step 2: Convert to fraction form
    13,106.93/19,565.36 = 12,131.32/x
  3. Step 3: Cross multiply
    13,106.93x = 19,565.36 × 12,131.32
  4. Step 4: Simplify right side
    13,106.93x = 237,353,643.08
  5. Step 5: Solve for x
    x = 237,353,643.08/13,106.93
  6. Step 6: Final answer
    x = 18,109.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.