Home / 12,275.76-16,940.34-6,970.50

Finding the Fourth Proportional to 12,275.76, 16,940.34 and 6,970.50

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Solution

The fourth proportional to 12,275.76, 16,940.34 and 6,970.50 is: 9,619.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,275.76 : 16,940.34 = 6,970.50 : x
  2. Step 2: Convert to fraction form
    12,275.76/16,940.34 = 6,970.50/x
  3. Step 3: Cross multiply
    12,275.76x = 16,940.34 × 6,970.50
  4. Step 4: Simplify right side
    12,275.76x = 118,082,639.97
  5. Step 5: Solve for x
    x = 118,082,639.97/12,275.76
  6. Step 6: Final answer
    x = 9,619.17

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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.