Home / 12,840.48-19,259.34-8,707.02

Finding the Fourth Proportional to 12,840.48, 19,259.34 and 8,707.02

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Solution

The fourth proportional to 12,840.48, 19,259.34 and 8,707.02 is: 13,059.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840.48 : 19,259.34 = 8,707.02 : x
  2. Step 2: Convert to fraction form
    12,840.48/19,259.34 = 8,707.02/x
  3. Step 3: Cross multiply
    12,840.48x = 19,259.34 × 8,707.02
  4. Step 4: Simplify right side
    12,840.48x = 167,691,458.57
  5. Step 5: Solve for x
    x = 167,691,458.57/12,840.48
  6. Step 6: Final answer
    x = 13,059.59

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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.