Home / 18,746.40-25,881.96-11,683.20

Finding the Fourth Proportional to 18,746.40, 25,881.96 and 11,683.20

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Solution

The fourth proportional to 18,746.40, 25,881.96 and 11,683.20 is: 16,130.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.40 : 25,881.96 = 11,683.20 : x
  2. Step 2: Convert to fraction form
    18,746.40/25,881.96 = 11,683.20/x
  3. Step 3: Cross multiply
    18,746.40x = 25,881.96 × 11,683.20
  4. Step 4: Simplify right side
    18,746.40x = 302,384,115.07
  5. Step 5: Solve for x
    x = 302,384,115.07/18,746.40
  6. Step 6: Final answer
    x = 16,130.25

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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.