Home / 10,143.51-14,007.71-9,591.33

Finding the Fourth Proportional to 10,143.51, 14,007.71 and 9,591.33

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Solution

The fourth proportional to 10,143.51, 14,007.71 and 9,591.33 is: 13,245.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.51 : 14,007.71 = 9,591.33 : x
  2. Step 2: Convert to fraction form
    10,143.51/14,007.71 = 9,591.33/x
  3. Step 3: Cross multiply
    10,143.51x = 14,007.71 × 9,591.33
  4. Step 4: Simplify right side
    10,143.51x = 134,352,521.20
  5. Step 5: Solve for x
    x = 134,352,521.20/10,143.51
  6. Step 6: Final answer
    x = 13,245.17

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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.