Home / 10,688.31-14,745.22-7,152.66

Finding the Fourth Proportional to 10,688.31, 14,745.22 and 7,152.66

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Solution

The fourth proportional to 10,688.31, 14,745.22 and 7,152.66 is: 9,867.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.31 : 14,745.22 = 7,152.66 : x
  2. Step 2: Convert to fraction form
    10,688.31/14,745.22 = 7,152.66/x
  3. Step 3: Cross multiply
    10,688.31x = 14,745.22 × 7,152.66
  4. Step 4: Simplify right side
    10,688.31x = 105,467,545.29
  5. Step 5: Solve for x
    x = 105,467,545.29/10,688.31
  6. Step 6: Final answer
    x = 9,867.56

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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.