Home / 13,045.81-18,003.52-7,672.17

Finding the Fourth Proportional to 13,045.81, 18,003.52 and 7,672.17

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Solution

The fourth proportional to 13,045.81, 18,003.52 and 7,672.17 is: 10,587.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.81 : 18,003.52 = 7,672.17 : x
  2. Step 2: Convert to fraction form
    13,045.81/18,003.52 = 7,672.17/x
  3. Step 3: Cross multiply
    13,045.81x = 18,003.52 × 7,672.17
  4. Step 4: Simplify right side
    13,045.81x = 138,125,998.72
  5. Step 5: Solve for x
    x = 138,125,998.72/13,045.81
  6. Step 6: Final answer
    x = 10,587.77

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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.