Home / 13,814.48-19,055.84-9,776.76

Finding the Fourth Proportional to 13,814.48, 19,055.84 and 9,776.76

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Solution

The fourth proportional to 13,814.48, 19,055.84 and 9,776.76 is: 13,486.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,814.48 : 19,055.84 = 9,776.76 : x
  2. Step 2: Convert to fraction form
    13,814.48/19,055.84 = 9,776.76/x
  3. Step 3: Cross multiply
    13,814.48x = 19,055.84 × 9,776.76
  4. Step 4: Simplify right side
    13,814.48x = 186,304,325.39
  5. Step 5: Solve for x
    x = 186,304,325.39/13,814.48
  6. Step 6: Final answer
    x = 13,486.17

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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.