Home / 12,612.47-17,405.33-6,947.35

Finding the Fourth Proportional to 12,612.47, 17,405.33 and 6,947.35

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Solution

The fourth proportional to 12,612.47, 17,405.33 and 6,947.35 is: 9,587.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612.47 : 17,405.33 = 6,947.35 : x
  2. Step 2: Convert to fraction form
    12,612.47/17,405.33 = 6,947.35/x
  3. Step 3: Cross multiply
    12,612.47x = 17,405.33 × 6,947.35
  4. Step 4: Simplify right side
    12,612.47x = 120,920,880.20
  5. Step 5: Solve for x
    x = 120,920,880.20/12,612.47
  6. Step 6: Final answer
    x = 9,587.41

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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.