Home / 9,529.60-13,172.88-7,948.48

Finding the Fourth Proportional to 9,529.60, 13,172.88 and 7,948.48

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Solution

The fourth proportional to 9,529.60, 13,172.88 and 7,948.48 is: 10,987.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,529.60 : 13,172.88 = 7,948.48 : x
  2. Step 2: Convert to fraction form
    9,529.60/13,172.88 = 7,948.48/x
  3. Step 3: Cross multiply
    9,529.60x = 13,172.88 × 7,948.48
  4. Step 4: Simplify right side
    9,529.60x = 104,704,373.22
  5. Step 5: Solve for x
    x = 104,704,373.22/9,529.60
  6. Step 6: Final answer
    x = 10,987.28

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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.