Home / 12,686,921.64-17,507,969.15-6,885,703.46

Finding the Fourth Proportional to 12,686,921.64, 17,507,969.15 and 6,885,703.46

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Solution

The fourth proportional to 12,686,921.64, 17,507,969.15 and 6,885,703.46 is: 9,502,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686,921.64 : 17,507,969.15 = 6,885,703.46 : x
  2. Step 2: Convert to fraction form
    12,686,921.64/17,507,969.15 = 6,885,703.46/x
  3. Step 3: Cross multiply
    12,686,921.64x = 17,507,969.15 × 6,885,703.46
  4. Step 4: Simplify right side
    12,686,921.64x = 120,554,683,631,759.89
  5. Step 5: Solve for x
    x = 120,554,683,631,759.89/12,686,921.64
  6. Step 6: Final answer
    x = 9,502,280.15

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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.