Home / 16,328.19-22,508.80-12,739.12

Finding the Fourth Proportional to 16,328.19, 22,508.80 and 12,739.12

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Solution

The fourth proportional to 16,328.19, 22,508.80 and 12,739.12 is: 17,561.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,328.19 : 22,508.80 = 12,739.12 : x
  2. Step 2: Convert to fraction form
    16,328.19/22,508.80 = 12,739.12/x
  3. Step 3: Cross multiply
    16,328.19x = 22,508.80 × 12,739.12
  4. Step 4: Simplify right side
    16,328.19x = 286,742,304.26
  5. Step 5: Solve for x
    x = 286,742,304.26/16,328.19
  6. Step 6: Final answer
    x = 17,561.18

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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.