Home / 13,690.23-20,559.03-13,066.93

Finding the Fourth Proportional to 13,690.23, 20,559.03 and 13,066.93

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Solution

The fourth proportional to 13,690.23, 20,559.03 and 13,066.93 is: 19,623.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.23 : 20,559.03 = 13,066.93 : x
  2. Step 2: Convert to fraction form
    13,690.23/20,559.03 = 13,066.93/x
  3. Step 3: Cross multiply
    13,690.23x = 20,559.03 × 13,066.93
  4. Step 4: Simplify right side
    13,690.23x = 268,643,405.88
  5. Step 5: Solve for x
    x = 268,643,405.88/13,690.23
  6. Step 6: Final answer
    x = 19,623.00

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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.