Home / 14,315.19-19,755.16-8,649.15

Finding the Fourth Proportional to 14,315.19, 19,755.16 and 8,649.15

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Solution

The fourth proportional to 14,315.19, 19,755.16 and 8,649.15 is: 11,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,315.19 : 19,755.16 = 8,649.15 : x
  2. Step 2: Convert to fraction form
    14,315.19/19,755.16 = 8,649.15/x
  3. Step 3: Cross multiply
    14,315.19x = 19,755.16 × 8,649.15
  4. Step 4: Simplify right side
    14,315.19x = 170,865,342.11
  5. Step 5: Solve for x
    x = 170,865,342.11/14,315.19
  6. Step 6: Final answer
    x = 11,935.95

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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.