Home / 13,291.08-18,341.64-7,323.36

Finding the Fourth Proportional to 13,291.08, 18,341.64 and 7,323.36

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Solution

The fourth proportional to 13,291.08, 18,341.64 and 7,323.36 is: 10,106.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.08 : 18,341.64 = 7,323.36 : x
  2. Step 2: Convert to fraction form
    13,291.08/18,341.64 = 7,323.36/x
  3. Step 3: Cross multiply
    13,291.08x = 18,341.64 × 7,323.36
  4. Step 4: Simplify right side
    13,291.08x = 134,322,432.71
  5. Step 5: Solve for x
    x = 134,322,432.71/13,291.08
  6. Step 6: Final answer
    x = 10,106.21

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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.