Home / 18,947.93-28,385.51-10,602.63

Finding the Fourth Proportional to 18,947.93, 28,385.51 and 10,602.63

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Solution

The fourth proportional to 18,947.93, 28,385.51 and 10,602.63 is: 15,883.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.93 : 28,385.51 = 10,602.63 : x
  2. Step 2: Convert to fraction form
    18,947.93/28,385.51 = 10,602.63/x
  3. Step 3: Cross multiply
    18,947.93x = 28,385.51 × 10,602.63
  4. Step 4: Simplify right side
    18,947.93x = 300,961,006.88
  5. Step 5: Solve for x
    x = 300,961,006.88/18,947.93
  6. Step 6: Final answer
    x = 15,883.59

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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.