Home / 10,128.60-13,975.62-7,701.03

Finding the Fourth Proportional to 10,128.60, 13,975.62 and 7,701.03

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Solution

The fourth proportional to 10,128.60, 13,975.62 and 7,701.03 is: 10,626.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.60 : 13,975.62 = 7,701.03 : x
  2. Step 2: Convert to fraction form
    10,128.60/13,975.62 = 7,701.03/x
  3. Step 3: Cross multiply
    10,128.60x = 13,975.62 × 7,701.03
  4. Step 4: Simplify right side
    10,128.60x = 107,626,668.89
  5. Step 5: Solve for x
    x = 107,626,668.89/10,128.60
  6. Step 6: Final answer
    x = 10,626.02

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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.