Home / 12,619.58-17,409.66-7,312.46

Finding the Fourth Proportional to 12,619.58, 17,409.66 and 7,312.46

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Solution

The fourth proportional to 12,619.58, 17,409.66 and 7,312.46 is: 10,088.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,619.58 : 17,409.66 = 7,312.46 : x
  2. Step 2: Convert to fraction form
    12,619.58/17,409.66 = 7,312.46/x
  3. Step 3: Cross multiply
    12,619.58x = 17,409.66 × 7,312.46
  4. Step 4: Simplify right side
    12,619.58x = 127,307,355.32
  5. Step 5: Solve for x
    x = 127,307,355.32/12,619.58
  6. Step 6: Final answer
    x = 10,088.09

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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.