Home / 15,478.24-21,359.91-8,764.33

Finding the Fourth Proportional to 15,478.24, 21,359.91 and 8,764.33

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Solution

The fourth proportional to 15,478.24, 21,359.91 and 8,764.33 is: 12,094.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.24 : 21,359.91 = 8,764.33 : x
  2. Step 2: Convert to fraction form
    15,478.24/21,359.91 = 8,764.33/x
  3. Step 3: Cross multiply
    15,478.24x = 21,359.91 × 8,764.33
  4. Step 4: Simplify right side
    15,478.24x = 187,205,300.01
  5. Step 5: Solve for x
    x = 187,205,300.01/15,478.24
  6. Step 6: Final answer
    x = 12,094.74

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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.