Home / 15,365.94-21,205.42-9,397.50

Finding the Fourth Proportional to 15,365.94, 21,205.42 and 9,397.50

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Solution

The fourth proportional to 15,365.94, 21,205.42 and 9,397.50 is: 12,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.94 : 21,205.42 = 9,397.50 : x
  2. Step 2: Convert to fraction form
    15,365.94/21,205.42 = 9,397.50/x
  3. Step 3: Cross multiply
    15,365.94x = 21,205.42 × 9,397.50
  4. Step 4: Simplify right side
    15,365.94x = 199,277,934.45
  5. Step 5: Solve for x
    x = 199,277,934.45/15,365.94
  6. Step 6: Final answer
    x = 12,968.81

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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.