Home / 18,768.16-25,899.78-10,810.45

Finding the Fourth Proportional to 18,768.16, 25,899.78 and 10,810.45

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Solution

The fourth proportional to 18,768.16, 25,899.78 and 10,810.45 is: 14,918.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.16 : 25,899.78 = 10,810.45 : x
  2. Step 2: Convert to fraction form
    18,768.16/25,899.78 = 10,810.45/x
  3. Step 3: Cross multiply
    18,768.16x = 25,899.78 × 10,810.45
  4. Step 4: Simplify right side
    18,768.16x = 279,988,276.70
  5. Step 5: Solve for x
    x = 279,988,276.70/18,768.16
  6. Step 6: Final answer
    x = 14,918.26

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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.