Home / 13,346.31-19,977.93-8,405.57

Finding the Fourth Proportional to 13,346.31, 19,977.93 and 8,405.57

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Solution

The fourth proportional to 13,346.31, 19,977.93 and 8,405.57 is: 12,582.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.31 : 19,977.93 = 8,405.57 : x
  2. Step 2: Convert to fraction form
    13,346.31/19,977.93 = 8,405.57/x
  3. Step 3: Cross multiply
    13,346.31x = 19,977.93 × 8,405.57
  4. Step 4: Simplify right side
    13,346.31x = 167,925,789.18
  5. Step 5: Solve for x
    x = 167,925,789.18/13,346.31
  6. Step 6: Final answer
    x = 12,582.19

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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.