Home / 13,873.13-19,143.95-8,762.68

Finding the Fourth Proportional to 13,873.13, 19,143.95 and 8,762.68

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Solution

The fourth proportional to 13,873.13, 19,143.95 and 8,762.68 is: 12,091.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.13 : 19,143.95 = 8,762.68 : x
  2. Step 2: Convert to fraction form
    13,873.13/19,143.95 = 8,762.68/x
  3. Step 3: Cross multiply
    13,873.13x = 19,143.95 × 8,762.68
  4. Step 4: Simplify right side
    13,873.13x = 167,752,263.97
  5. Step 5: Solve for x
    x = 167,752,263.97/13,873.13
  6. Step 6: Final answer
    x = 12,091.89

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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.