Home / 7,947.72-10,968.21-5,590.62

Finding the Fourth Proportional to 7,947.72, 10,968.21 and 5,590.62

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Solution

The fourth proportional to 7,947.72, 10,968.21 and 5,590.62 is: 7,715.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.72 : 10,968.21 = 5,590.62 : x
  2. Step 2: Convert to fraction form
    7,947.72/10,968.21 = 5,590.62/x
  3. Step 3: Cross multiply
    7,947.72x = 10,968.21 × 5,590.62
  4. Step 4: Simplify right side
    7,947.72x = 61,319,094.19
  5. Step 5: Solve for x
    x = 61,319,094.19/7,947.72
  6. Step 6: Final answer
    x = 7,715.31

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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.