Home / 13,100.23-19,637.99-6,520.19

Finding the Fourth Proportional to 13,100.23, 19,637.99 and 6,520.19

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Solution

The fourth proportional to 13,100.23, 19,637.99 and 6,520.19 is: 9,774.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.23 : 19,637.99 = 6,520.19 : x
  2. Step 2: Convert to fraction form
    13,100.23/19,637.99 = 6,520.19/x
  3. Step 3: Cross multiply
    13,100.23x = 19,637.99 × 6,520.19
  4. Step 4: Simplify right side
    13,100.23x = 128,043,393.42
  5. Step 5: Solve for x
    x = 128,043,393.42/13,100.23
  6. Step 6: Final answer
    x = 9,774.14

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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.