Home / 13,319.60-19,845.34-13,129.52

Finding the Fourth Proportional to 13,319.60, 19,845.34 and 13,129.52

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Solution

The fourth proportional to 13,319.60, 19,845.34 and 13,129.52 is: 19,562.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.60 : 19,845.34 = 13,129.52 : x
  2. Step 2: Convert to fraction form
    13,319.60/19,845.34 = 13,129.52/x
  3. Step 3: Cross multiply
    13,319.60x = 19,845.34 × 13,129.52
  4. Step 4: Simplify right side
    13,319.60x = 260,559,788.44
  5. Step 5: Solve for x
    x = 260,559,788.44/13,319.60
  6. Step 6: Final answer
    x = 19,562.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.