Home / 14,215.79-19,615.56-8,246.23

Finding the Fourth Proportional to 14,215.79, 19,615.56 and 8,246.23

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Solution

The fourth proportional to 14,215.79, 19,615.56 and 8,246.23 is: 11,378.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.79 : 19,615.56 = 8,246.23 : x
  2. Step 2: Convert to fraction form
    14,215.79/19,615.56 = 8,246.23/x
  3. Step 3: Cross multiply
    14,215.79x = 19,615.56 × 8,246.23
  4. Step 4: Simplify right side
    14,215.79x = 161,754,419.34
  5. Step 5: Solve for x
    x = 161,754,419.34/14,215.79
  6. Step 6: Final answer
    x = 11,378.50

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Half scale
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Double scale
Find fourth proportional to 14,216.79, 19,616.94 and 8,247.23
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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.