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Finding the Fourth Proportional to 12,340.70, 17,030.55 and 6,751.70

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Solution

The fourth proportional to 12,340.70, 17,030.55 and 6,751.70 is: 9,317.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.70 : 17,030.55 = 6,751.70 : x
  2. Step 2: Convert to fraction form
    12,340.70/17,030.55 = 6,751.70/x
  3. Step 3: Cross multiply
    12,340.70x = 17,030.55 × 6,751.70
  4. Step 4: Simplify right side
    12,340.70x = 114,985,079.28
  5. Step 5: Solve for x
    x = 114,985,079.28/12,340.70
  6. Step 6: Final answer
    x = 9,317.55

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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.