Home / 8,947.26-12,345.75-5,590.62

Finding the Fourth Proportional to 8,947.26, 12,345.75 and 5,590.62

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Solution

The fourth proportional to 8,947.26, 12,345.75 and 5,590.62 is: 7,714.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.26 : 12,345.75 = 5,590.62 : x
  2. Step 2: Convert to fraction form
    8,947.26/12,345.75 = 5,590.62/x
  3. Step 3: Cross multiply
    8,947.26x = 12,345.75 × 5,590.62
  4. Step 4: Simplify right side
    8,947.26x = 69,020,396.87
  5. Step 5: Solve for x
    x = 69,020,396.87/8,947.26
  6. Step 6: Final answer
    x = 7,714.14

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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.