Home / 19,617.20-27,071.56-10,664.72

Finding the Fourth Proportional to 19,617.20, 27,071.56 and 10,664.72

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Solution

The fourth proportional to 19,617.20, 27,071.56 and 10,664.72 is: 14,717.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,617.20 : 27,071.56 = 10,664.72 : x
  2. Step 2: Convert to fraction form
    19,617.20/27,071.56 = 10,664.72/x
  3. Step 3: Cross multiply
    19,617.20x = 27,071.56 × 10,664.72
  4. Step 4: Simplify right side
    19,617.20x = 288,710,607.36
  5. Step 5: Solve for x
    x = 288,710,607.36/19,617.20
  6. Step 6: Final answer
    x = 14,717.22

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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.