Home / 18,988.98-26,204.66-10,491.68

Finding the Fourth Proportional to 18,988.98, 26,204.66 and 10,491.68

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Solution

The fourth proportional to 18,988.98, 26,204.66 and 10,491.68 is: 14,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.98 : 26,204.66 = 10,491.68 : x
  2. Step 2: Convert to fraction form
    18,988.98/26,204.66 = 10,491.68/x
  3. Step 3: Cross multiply
    18,988.98x = 26,204.66 × 10,491.68
  4. Step 4: Simplify right side
    18,988.98x = 274,930,907.23
  5. Step 5: Solve for x
    x = 274,930,907.23/18,988.98
  6. Step 6: Final answer
    x = 14,478.45

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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.