Home / 7,090.48-10,621.87-5,212.91

Finding the Fourth Proportional to 7,090.48, 10,621.87 and 5,212.91

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Solution

The fourth proportional to 7,090.48, 10,621.87 and 5,212.91 is: 7,809.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.48 : 10,621.87 = 5,212.91 : x
  2. Step 2: Convert to fraction form
    7,090.48/10,621.87 = 5,212.91/x
  3. Step 3: Cross multiply
    7,090.48x = 10,621.87 × 5,212.91
  4. Step 4: Simplify right side
    7,090.48x = 55,370,852.34
  5. Step 5: Solve for x
    x = 55,370,852.34/7,090.48
  6. Step 6: Final answer
    x = 7,809.18

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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.