Home / 13,291.29-18,342.45-7,323.41

Finding the Fourth Proportional to 13,291.29, 18,342.45 and 7,323.41

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Solution

The fourth proportional to 13,291.29, 18,342.45 and 7,323.41 is: 10,106.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.29 : 18,342.45 = 7,323.41 : x
  2. Step 2: Convert to fraction form
    13,291.29/18,342.45 = 7,323.41/x
  3. Step 3: Cross multiply
    13,291.29x = 18,342.45 × 7,323.41
  4. Step 4: Simplify right side
    13,291.29x = 134,329,327.61
  5. Step 5: Solve for x
    x = 134,329,327.61/13,291.29
  6. Step 6: Final answer
    x = 10,106.57

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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.