Home / 12,637.84-17,439.36-6,972.24

Finding the Fourth Proportional to 12,637.84, 17,439.36 and 6,972.24

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Solution

The fourth proportional to 12,637.84, 17,439.36 and 6,972.24 is: 9,621.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.84 : 17,439.36 = 6,972.24 : x
  2. Step 2: Convert to fraction form
    12,637.84/17,439.36 = 6,972.24/x
  3. Step 3: Cross multiply
    12,637.84x = 17,439.36 × 6,972.24
  4. Step 4: Simplify right side
    12,637.84x = 121,591,403.37
  5. Step 5: Solve for x
    x = 121,591,403.37/12,637.84
  6. Step 6: Final answer
    x = 9,621.22

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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.