Home / 13,203.42-19,667.55-12,502.20

Finding the Fourth Proportional to 13,203.42, 19,667.55 and 12,502.20

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Solution

The fourth proportional to 13,203.42, 19,667.55 and 12,502.20 is: 18,623.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.42 : 19,667.55 = 12,502.20 : x
  2. Step 2: Convert to fraction form
    13,203.42/19,667.55 = 12,502.20/x
  3. Step 3: Cross multiply
    13,203.42x = 19,667.55 × 12,502.20
  4. Step 4: Simplify right side
    13,203.42x = 245,887,643.61
  5. Step 5: Solve for x
    x = 245,887,643.61/13,203.42
  6. Step 6: Final answer
    x = 18,623.03

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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.