Home / 8,763.60-13,145.40-5,307.60

Finding the Fourth Proportional to 8,763.60, 13,145.40 and 5,307.60

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Solution

The fourth proportional to 8,763.60, 13,145.40 and 5,307.60 is: 7,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.60 : 13,145.40 = 5,307.60 : x
  2. Step 2: Convert to fraction form
    8,763.60/13,145.40 = 5,307.60/x
  3. Step 3: Cross multiply
    8,763.60x = 13,145.40 × 5,307.60
  4. Step 4: Simplify right side
    8,763.60x = 69,770,525.04
  5. Step 5: Solve for x
    x = 69,770,525.04/8,763.60
  6. Step 6: Final answer
    x = 7,961.40

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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.