Home / 12,943.96-17,869.10-9,894.32

Finding the Fourth Proportional to 12,943.96, 17,869.10 and 9,894.32

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Solution

The fourth proportional to 12,943.96, 17,869.10 and 9,894.32 is: 13,659.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943.96 : 17,869.10 = 9,894.32 : x
  2. Step 2: Convert to fraction form
    12,943.96/17,869.10 = 9,894.32/x
  3. Step 3: Cross multiply
    12,943.96x = 17,869.10 × 9,894.32
  4. Step 4: Simplify right side
    12,943.96x = 176,802,593.51
  5. Step 5: Solve for x
    x = 176,802,593.51/12,943.96
  6. Step 6: Final answer
    x = 13,659.08

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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.