Home / 12,641.81-17,445.56-6,976.59

Finding the Fourth Proportional to 12,641.81, 17,445.56 and 6,976.59

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Solution

The fourth proportional to 12,641.81, 17,445.56 and 6,976.59 is: 9,627.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641.81 : 17,445.56 = 6,976.59 : x
  2. Step 2: Convert to fraction form
    12,641.81/17,445.56 = 6,976.59/x
  3. Step 3: Cross multiply
    12,641.81x = 17,445.56 × 6,976.59
  4. Step 4: Simplify right side
    12,641.81x = 121,710,484.56
  5. Step 5: Solve for x
    x = 121,710,484.56/12,641.81
  6. Step 6: Final answer
    x = 9,627.62

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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.