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Finding the Fourth Proportional to 12,330.98, 17,030.49 and 11,397.86

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Solution

The fourth proportional to 12,330.98, 17,030.49 and 11,397.86 is: 15,741.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,330.98 : 17,030.49 = 11,397.86 : x
  2. Step 2: Convert to fraction form
    12,330.98/17,030.49 = 11,397.86/x
  3. Step 3: Cross multiply
    12,330.98x = 17,030.49 × 11,397.86
  4. Step 4: Simplify right side
    12,330.98x = 194,111,140.75
  5. Step 5: Solve for x
    x = 194,111,140.75/12,330.98
  6. Step 6: Final answer
    x = 15,741.74

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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.