Home / 18,936.16-26,132.08-10,438.45

Finding the Fourth Proportional to 18,936.16, 26,132.08 and 10,438.45

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Solution

The fourth proportional to 18,936.16, 26,132.08 and 10,438.45 is: 14,405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.16 : 26,132.08 = 10,438.45 : x
  2. Step 2: Convert to fraction form
    18,936.16/26,132.08 = 10,438.45/x
  3. Step 3: Cross multiply
    18,936.16x = 26,132.08 × 10,438.45
  4. Step 4: Simplify right side
    18,936.16x = 272,778,410.48
  5. Step 5: Solve for x
    x = 272,778,410.48/18,936.16
  6. Step 6: Final answer
    x = 14,405.16

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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.