Home / 18,486.49-25,515.89-10,533.40

Finding the Fourth Proportional to 18,486.49, 25,515.89 and 10,533.40

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Solution

The fourth proportional to 18,486.49, 25,515.89 and 10,533.40 is: 14,538.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,486.49 : 25,515.89 = 10,533.40 : x
  2. Step 2: Convert to fraction form
    18,486.49/25,515.89 = 10,533.40/x
  3. Step 3: Cross multiply
    18,486.49x = 25,515.89 × 10,533.40
  4. Step 4: Simplify right side
    18,486.49x = 268,769,075.73
  5. Step 5: Solve for x
    x = 268,769,075.73/18,486.49
  6. Step 6: Final answer
    x = 14,538.68

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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.