Home / 15,624.06-21,511.26-12,649.74

Finding the Fourth Proportional to 15,624.06, 21,511.26 and 12,649.74

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Solution

The fourth proportional to 15,624.06, 21,511.26 and 12,649.74 is: 17,416.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,624.06 : 21,511.26 = 12,649.74 : x
  2. Step 2: Convert to fraction form
    15,624.06/21,511.26 = 12,649.74/x
  3. Step 3: Cross multiply
    15,624.06x = 21,511.26 × 12,649.74
  4. Step 4: Simplify right side
    15,624.06x = 272,111,846.07
  5. Step 5: Solve for x
    x = 272,111,846.07/15,624.06
  6. Step 6: Final answer
    x = 17,416.21

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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.