Home / 7,136.16-9,818.56-6,970.36

Finding the Fourth Proportional to 7,136.16, 9,818.56 and 6,970.36

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Solution

The fourth proportional to 7,136.16, 9,818.56 and 6,970.36 is: 9,590.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.16 : 9,818.56 = 6,970.36 : x
  2. Step 2: Convert to fraction form
    7,136.16/9,818.56 = 6,970.36/x
  3. Step 3: Cross multiply
    7,136.16x = 9,818.56 × 6,970.36
  4. Step 4: Simplify right side
    7,136.16x = 68,438,897.88
  5. Step 5: Solve for x
    x = 68,438,897.88/7,136.16
  6. Step 6: Final answer
    x = 9,590.44

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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.