Home / 9,117.37-13,701.70-5,420.26

Finding the Fourth Proportional to 9,117.37, 13,701.70 and 5,420.26

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Solution

The fourth proportional to 9,117.37, 13,701.70 and 5,420.26 is: 8,145.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.37 : 13,701.70 = 5,420.26 : x
  2. Step 2: Convert to fraction form
    9,117.37/13,701.70 = 5,420.26/x
  3. Step 3: Cross multiply
    9,117.37x = 13,701.70 × 5,420.26
  4. Step 4: Simplify right side
    9,117.37x = 74,266,707.93
  5. Step 5: Solve for x
    x = 74,266,707.93/9,117.37
  6. Step 6: Final answer
    x = 8,145.63

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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.