Home / 9,386.80-12,948.84-6,999.28

Finding the Fourth Proportional to 9,386.80, 12,948.84 and 6,999.28

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Solution

The fourth proportional to 9,386.80, 12,948.84 and 6,999.28 is: 9,655.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,386.80 : 12,948.84 = 6,999.28 : x
  2. Step 2: Convert to fraction form
    9,386.80/12,948.84 = 6,999.28/x
  3. Step 3: Cross multiply
    9,386.80x = 12,948.84 × 6,999.28
  4. Step 4: Simplify right side
    9,386.80x = 90,632,556.84
  5. Step 5: Solve for x
    x = 90,632,556.84/9,386.80
  6. Step 6: Final answer
    x = 9,655.32

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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.