Home / 15,478.26-23,220.90-5,090.10

Finding the Fourth Proportional to 15,478.26, 23,220.90 and 5,090.10

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Solution

The fourth proportional to 15,478.26, 23,220.90 and 5,090.10 is: 7,636.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.26 : 23,220.90 = 5,090.10 : x
  2. Step 2: Convert to fraction form
    15,478.26/23,220.90 = 5,090.10/x
  3. Step 3: Cross multiply
    15,478.26x = 23,220.90 × 5,090.10
  4. Step 4: Simplify right side
    15,478.26x = 118,196,703.09
  5. Step 5: Solve for x
    x = 118,196,703.09/15,478.26
  6. Step 6: Final answer
    x = 7,636.30

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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.