Home / 9,670.80-13,347.20-5,423.58

Finding the Fourth Proportional to 9,670.80, 13,347.20 and 5,423.58

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Solution

The fourth proportional to 9,670.80, 13,347.20 and 5,423.58 is: 7,485.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,670.80 : 13,347.20 = 5,423.58 : x
  2. Step 2: Convert to fraction form
    9,670.80/13,347.20 = 5,423.58/x
  3. Step 3: Cross multiply
    9,670.80x = 13,347.20 × 5,423.58
  4. Step 4: Simplify right side
    9,670.80x = 72,389,540.24
  5. Step 5: Solve for x
    x = 72,389,540.24/9,670.80
  6. Step 6: Final answer
    x = 7,485.37

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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.