Home / 13,776.84-19,011.96-7,489.08

Finding the Fourth Proportional to 13,776.84, 19,011.96 and 7,489.08

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Solution

The fourth proportional to 13,776.84, 19,011.96 and 7,489.08 is: 10,334.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776.84 : 19,011.96 = 7,489.08 : x
  2. Step 2: Convert to fraction form
    13,776.84/19,011.96 = 7,489.08/x
  3. Step 3: Cross multiply
    13,776.84x = 19,011.96 × 7,489.08
  4. Step 4: Simplify right side
    13,776.84x = 142,382,089.40
  5. Step 5: Solve for x
    x = 142,382,089.40/13,776.84
  6. Step 6: Final answer
    x = 10,334.89

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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.