Home / 9,360.50-12,918.93-5,636.66

Finding the Fourth Proportional to 9,360.50, 12,918.93 and 5,636.66

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Solution

The fourth proportional to 9,360.50, 12,918.93 and 5,636.66 is: 7,779.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.50 : 12,918.93 = 5,636.66 : x
  2. Step 2: Convert to fraction form
    9,360.50/12,918.93 = 5,636.66/x
  3. Step 3: Cross multiply
    9,360.50x = 12,918.93 × 5,636.66
  4. Step 4: Simplify right side
    9,360.50x = 72,819,615.97
  5. Step 5: Solve for x
    x = 72,819,615.97/9,360.50
  6. Step 6: Final answer
    x = 7,779.46

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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.