Home / 14,016.81-19,343.19-7,729.17

Finding the Fourth Proportional to 14,016.81, 19,343.19 and 7,729.17

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Solution

The fourth proportional to 14,016.81, 19,343.19 and 7,729.17 is: 10,666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,016.81 : 19,343.19 = 7,729.17 : x
  2. Step 2: Convert to fraction form
    14,016.81/19,343.19 = 7,729.17/x
  3. Step 3: Cross multiply
    14,016.81x = 19,343.19 × 7,729.17
  4. Step 4: Simplify right side
    14,016.81x = 149,506,803.85
  5. Step 5: Solve for x
    x = 149,506,803.85/14,016.81
  6. Step 6: Final answer
    x = 10,666.25

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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.