Home / 9,699.80-13,386.45-5,451.23

Finding the Fourth Proportional to 9,699.80, 13,386.45 and 5,451.23

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Solution

The fourth proportional to 9,699.80, 13,386.45 and 5,451.23 is: 7,523.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,699.80 : 13,386.45 = 5,451.23 : x
  2. Step 2: Convert to fraction form
    9,699.80/13,386.45 = 5,451.23/x
  3. Step 3: Cross multiply
    9,699.80x = 13,386.45 × 5,451.23
  4. Step 4: Simplify right side
    9,699.80x = 72,972,635.84
  5. Step 5: Solve for x
    x = 72,972,635.84/9,699.80
  6. Step 6: Final answer
    x = 7,523.11

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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.