Home / 12,686,921.68-17,507,969.23-6,885,703.51

Finding the Fourth Proportional to 12,686,921.68, 17,507,969.23 and 6,885,703.51

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Solution

The fourth proportional to 12,686,921.68, 17,507,969.23 and 6,885,703.51 is: 9,502,280.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686,921.68 : 17,507,969.23 = 6,885,703.51 : x
  2. Step 2: Convert to fraction form
    12,686,921.68/17,507,969.23 = 6,885,703.51/x
  3. Step 3: Cross multiply
    12,686,921.68x = 17,507,969.23 × 6,885,703.51
  4. Step 4: Simplify right side
    12,686,921.68x = 120,554,685,179,983
  5. Step 5: Solve for x
    x = 120,554,685,179,983/12,686,921.68
  6. Step 6: Final answer
    x = 9,502,280.24

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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.