Home / 14,263.86-21,291.29-12,580.51

Finding the Fourth Proportional to 14,263.86, 21,291.29 and 12,580.51

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Solution

The fourth proportional to 14,263.86, 21,291.29 and 12,580.51 is: 18,778.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,263.86 : 21,291.29 = 12,580.51 : x
  2. Step 2: Convert to fraction form
    14,263.86/21,291.29 = 12,580.51/x
  3. Step 3: Cross multiply
    14,263.86x = 21,291.29 × 12,580.51
  4. Step 4: Simplify right side
    14,263.86x = 267,855,197.84
  5. Step 5: Solve for x
    x = 267,855,197.84/14,263.86
  6. Step 6: Final answer
    x = 18,778.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.