Home / 14,784.63-20,406.21-9,749.76

Finding the Fourth Proportional to 14,784.63, 20,406.21 and 9,749.76

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Solution

The fourth proportional to 14,784.63, 20,406.21 and 9,749.76 is: 13,456.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,784.63 : 20,406.21 = 9,749.76 : x
  2. Step 2: Convert to fraction form
    14,784.63/20,406.21 = 9,749.76/x
  3. Step 3: Cross multiply
    14,784.63x = 20,406.21 × 9,749.76
  4. Step 4: Simplify right side
    14,784.63x = 198,955,650.01
  5. Step 5: Solve for x
    x = 198,955,650.01/14,784.63
  6. Step 6: Final answer
    x = 13,456.92

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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.