Home / 14,152.77-19,486.22-12,840.57

Finding the Fourth Proportional to 14,152.77, 19,486.22 and 12,840.57

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Solution

The fourth proportional to 14,152.77, 19,486.22 and 12,840.57 is: 17,679.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,152.77 : 19,486.22 = 12,840.57 : x
  2. Step 2: Convert to fraction form
    14,152.77/19,486.22 = 12,840.57/x
  3. Step 3: Cross multiply
    14,152.77x = 19,486.22 × 12,840.57
  4. Step 4: Simplify right side
    14,152.77x = 250,214,107.74
  5. Step 5: Solve for x
    x = 250,214,107.74/14,152.77
  6. Step 6: Final answer
    x = 17,679.51

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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.