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Finding the Fourth Proportional to 10,606.95, 15,887.03 and 6,645.31

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Solution

The fourth proportional to 10,606.95, 15,887.03 and 6,645.31 is: 9,953.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,606.95 : 15,887.03 = 6,645.31 : x
  2. Step 2: Convert to fraction form
    10,606.95/15,887.03 = 6,645.31/x
  3. Step 3: Cross multiply
    10,606.95x = 15,887.03 × 6,645.31
  4. Step 4: Simplify right side
    10,606.95x = 105,574,239.33
  5. Step 5: Solve for x
    x = 105,574,239.33/10,606.95
  6. Step 6: Final answer
    x = 9,953.31

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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.