Home / 9,851.72-13,585.88-6,628.80

Finding the Fourth Proportional to 9,851.72, 13,585.88 and 6,628.80

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Solution

The fourth proportional to 9,851.72, 13,585.88 and 6,628.80 is: 9,141.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,851.72 : 13,585.88 = 6,628.80 : x
  2. Step 2: Convert to fraction form
    9,851.72/13,585.88 = 6,628.80/x
  3. Step 3: Cross multiply
    9,851.72x = 13,585.88 × 6,628.80
  4. Step 4: Simplify right side
    9,851.72x = 90,058,048.20
  5. Step 5: Solve for x
    x = 90,058,048.20/9,851.72
  6. Step 6: Final answer
    x = 9,141.36

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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.