Home / 13,309.36-19,968.88-6,291.52

Finding the Fourth Proportional to 13,309.36, 19,968.88 and 6,291.52

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Solution

The fourth proportional to 13,309.36, 19,968.88 and 6,291.52 is: 9,439.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.36 : 19,968.88 = 6,291.52 : x
  2. Step 2: Convert to fraction form
    13,309.36/19,968.88 = 6,291.52/x
  3. Step 3: Cross multiply
    13,309.36x = 19,968.88 × 6,291.52
  4. Step 4: Simplify right side
    13,309.36x = 125,634,607.90
  5. Step 5: Solve for x
    x = 125,634,607.90/13,309.36
  6. Step 6: Final answer
    x = 9,439.57

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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.