Home / 14,731.48-20,330-8,445.08

Finding the Fourth Proportional to 14,731.48, 20,330 and 8,445.08

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Solution

The fourth proportional to 14,731.48, 20,330 and 8,445.08 is: 11,654.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,731.48 : 20,330 = 8,445.08 : x
  2. Step 2: Convert to fraction form
    14,731.48/20,330 = 8,445.08/x
  3. Step 3: Cross multiply
    14,731.48x = 20,330 × 8,445.08
  4. Step 4: Simplify right side
    14,731.48x = 171,688,476.40
  5. Step 5: Solve for x
    x = 171,688,476.40/14,731.48
  6. Step 6: Final answer
    x = 11,654.53

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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.