Home / 18,488.40-25,532.63-11,777.03

Finding the Fourth Proportional to 18,488.40, 25,532.63 and 11,777.03

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Solution

The fourth proportional to 18,488.40, 25,532.63 and 11,777.03 is: 16,264.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.40 : 25,532.63 = 11,777.03 : x
  2. Step 2: Convert to fraction form
    18,488.40/25,532.63 = 11,777.03/x
  3. Step 3: Cross multiply
    18,488.40x = 25,532.63 × 11,777.03
  4. Step 4: Simplify right side
    18,488.40x = 300,698,549.49
  5. Step 5: Solve for x
    x = 300,698,549.49/18,488.40
  6. Step 6: Final answer
    x = 16,264.17

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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.