Home / 6,972.48-9,615.40-4,455.40

Finding the Fourth Proportional to 6,972.48, 9,615.40 and 4,455.40

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Solution

The fourth proportional to 6,972.48, 9,615.40 and 4,455.40 is: 6,144.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.48 : 9,615.40 = 4,455.40 : x
  2. Step 2: Convert to fraction form
    6,972.48/9,615.40 = 4,455.40/x
  3. Step 3: Cross multiply
    6,972.48x = 9,615.40 × 4,455.40
  4. Step 4: Simplify right side
    6,972.48x = 42,840,453.16
  5. Step 5: Solve for x
    x = 42,840,453.16/6,972.48
  6. Step 6: Final answer
    x = 6,144.22

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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.