Home / 9,117.82-12,583.77-5,140.18

Finding the Fourth Proportional to 9,117.82, 12,583.77 and 5,140.18

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Solution

The fourth proportional to 9,117.82, 12,583.77 and 5,140.18 is: 7,094.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.82 : 12,583.77 = 5,140.18 : x
  2. Step 2: Convert to fraction form
    9,117.82/12,583.77 = 5,140.18/x
  3. Step 3: Cross multiply
    9,117.82x = 12,583.77 × 5,140.18
  4. Step 4: Simplify right side
    9,117.82x = 64,682,779.96
  5. Step 5: Solve for x
    x = 64,682,779.96/9,117.82
  6. Step 6: Final answer
    x = 7,094.11

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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.