Home / 10,773.12-14,875.20-8,686.56

Finding the Fourth Proportional to 10,773.12, 14,875.20 and 8,686.56

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Solution

The fourth proportional to 10,773.12, 14,875.20 and 8,686.56 is: 11,994.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,773.12 : 14,875.20 = 8,686.56 : x
  2. Step 2: Convert to fraction form
    10,773.12/14,875.20 = 8,686.56/x
  3. Step 3: Cross multiply
    10,773.12x = 14,875.20 × 8,686.56
  4. Step 4: Simplify right side
    10,773.12x = 129,214,317.31
  5. Step 5: Solve for x
    x = 129,214,317.31/10,773.12
  6. Step 6: Final answer
    x = 11,994.14

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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.