Home / 13,130.40-19,684.59-5,729.23

Finding the Fourth Proportional to 13,130.40, 19,684.59 and 5,729.23

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Solution

The fourth proportional to 13,130.40, 19,684.59 and 5,729.23 is: 8,589.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.40 : 19,684.59 = 5,729.23 : x
  2. Step 2: Convert to fraction form
    13,130.40/19,684.59 = 5,729.23/x
  3. Step 3: Cross multiply
    13,130.40x = 19,684.59 × 5,729.23
  4. Step 4: Simplify right side
    13,130.40x = 112,777,416.50
  5. Step 5: Solve for x
    x = 112,777,416.50/13,130.40
  6. Step 6: Final answer
    x = 8,589.03

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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.