Home / 13,458.83-18,570.87-12,370.05

Finding the Fourth Proportional to 13,458.83, 18,570.87 and 12,370.05

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Solution

The fourth proportional to 13,458.83, 18,570.87 and 12,370.05 is: 17,068.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.83 : 18,570.87 = 12,370.05 : x
  2. Step 2: Convert to fraction form
    13,458.83/18,570.87 = 12,370.05/x
  3. Step 3: Cross multiply
    13,458.83x = 18,570.87 × 12,370.05
  4. Step 4: Simplify right side
    13,458.83x = 229,722,590.44
  5. Step 5: Solve for x
    x = 229,722,590.44/13,458.83
  6. Step 6: Final answer
    x = 17,068.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.