Home / 15,649.48-21,596.35-8,479.41

Finding the Fourth Proportional to 15,649.48, 21,596.35 and 8,479.41

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Solution

The fourth proportional to 15,649.48, 21,596.35 and 8,479.41 is: 11,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,649.48 : 21,596.35 = 8,479.41 : x
  2. Step 2: Convert to fraction form
    15,649.48/21,596.35 = 8,479.41/x
  3. Step 3: Cross multiply
    15,649.48x = 21,596.35 × 8,479.41
  4. Step 4: Simplify right side
    15,649.48x = 183,124,256.76
  5. Step 5: Solve for x
    x = 183,124,256.76/15,649.48
  6. Step 6: Final answer
    x = 11,701.62

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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.