Home / 13,159.40-19,734.30-4,394.60

Finding the Fourth Proportional to 13,159.40, 19,734.30 and 4,394.60

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Solution

The fourth proportional to 13,159.40, 19,734.30 and 4,394.60 is: 6,590.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.40 : 19,734.30 = 4,394.60 : x
  2. Step 2: Convert to fraction form
    13,159.40/19,734.30 = 4,394.60/x
  3. Step 3: Cross multiply
    13,159.40x = 19,734.30 × 4,394.60
  4. Step 4: Simplify right side
    13,159.40x = 86,724,354.78
  5. Step 5: Solve for x
    x = 86,724,354.78/13,159.40
  6. Step 6: Final answer
    x = 6,590.30

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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.