Home / 14,528.36-21,780.30-6,742.76

Finding the Fourth Proportional to 14,528.36, 21,780.30 and 6,742.76

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Solution

The fourth proportional to 14,528.36, 21,780.30 and 6,742.76 is: 10,108.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,528.36 : 21,780.30 = 6,742.76 : x
  2. Step 2: Convert to fraction form
    14,528.36/21,780.30 = 6,742.76/x
  3. Step 3: Cross multiply
    14,528.36x = 21,780.30 × 6,742.76
  4. Step 4: Simplify right side
    14,528.36x = 146,859,335.63
  5. Step 5: Solve for x
    x = 146,859,335.63/14,528.36
  6. Step 6: Final answer
    x = 10,108.46

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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.