Home / 15,315.08-21,133.33-8,599.41

Finding the Fourth Proportional to 15,315.08, 21,133.33 and 8,599.41

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Solution

The fourth proportional to 15,315.08, 21,133.33 and 8,599.41 is: 11,866.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315.08 : 21,133.33 = 8,599.41 : x
  2. Step 2: Convert to fraction form
    15,315.08/21,133.33 = 8,599.41/x
  3. Step 3: Cross multiply
    15,315.08x = 21,133.33 × 8,599.41
  4. Step 4: Simplify right side
    15,315.08x = 181,734,147.84
  5. Step 5: Solve for x
    x = 181,734,147.84/15,315.08
  6. Step 6: Final answer
    x = 11,866.36

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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.