Home / 12,883.29-19,323.45-8,749.86

Finding the Fourth Proportional to 12,883.29, 19,323.45 and 8,749.86

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Solution

The fourth proportional to 12,883.29, 19,323.45 and 8,749.86 is: 13,123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.29 : 19,323.45 = 8,749.86 : x
  2. Step 2: Convert to fraction form
    12,883.29/19,323.45 = 8,749.86/x
  3. Step 3: Cross multiply
    12,883.29x = 19,323.45 × 8,749.86
  4. Step 4: Simplify right side
    12,883.29x = 169,077,482.22
  5. Step 5: Solve for x
    x = 169,077,482.22/12,883.29
  6. Step 6: Final answer
    x = 13,123.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.