Home / 12,578,088.36-17,357,359.88-7,071,696.21

Finding the Fourth Proportional to 12,578,088.36, 17,357,359.88 and 7,071,696.21

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Solution

The fourth proportional to 12,578,088.36, 17,357,359.88 and 7,071,696.21 is: 9,758,714.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578,088.36 : 17,357,359.88 = 7,071,696.21 : x
  2. Step 2: Convert to fraction form
    12,578,088.36/17,357,359.88 = 7,071,696.21/x
  3. Step 3: Cross multiply
    12,578,088.36x = 17,357,359.88 × 7,071,696.21
  4. Step 4: Simplify right side
    12,578,088.36x = 122,745,976,043,643.58
  5. Step 5: Solve for x
    x = 122,745,976,043,643.58/12,578,088.36
  6. Step 6: Final answer
    x = 9,758,714.72

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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.