Home / 14,040.28-21,071.94-7,116.76

Finding the Fourth Proportional to 14,040.28, 21,071.94 and 7,116.76

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Solution

The fourth proportional to 14,040.28, 21,071.94 and 7,116.76 is: 10,680.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040.28 : 21,071.94 = 7,116.76 : x
  2. Step 2: Convert to fraction form
    14,040.28/21,071.94 = 7,116.76/x
  3. Step 3: Cross multiply
    14,040.28x = 21,071.94 × 7,116.76
  4. Step 4: Simplify right side
    14,040.28x = 149,963,939.71
  5. Step 5: Solve for x
    x = 149,963,939.71/14,040.28
  6. Step 6: Final answer
    x = 10,680.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.