Home / 14,293.12-19,720.56-11,931.52

Finding the Fourth Proportional to 14,293.12, 19,720.56 and 11,931.52

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Solution

The fourth proportional to 14,293.12, 19,720.56 and 11,931.52 is: 16,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,293.12 : 19,720.56 = 11,931.52 : x
  2. Step 2: Convert to fraction form
    14,293.12/19,720.56 = 11,931.52/x
  3. Step 3: Cross multiply
    14,293.12x = 19,720.56 × 11,931.52
  4. Step 4: Simplify right side
    14,293.12x = 235,296,256.05
  5. Step 5: Solve for x
    x = 235,296,256.05/14,293.12
  6. Step 6: Final answer
    x = 16,462.20

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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.