Home / 11,487.42-15,854.13-7,011.77

Finding the Fourth Proportional to 11,487.42, 15,854.13 and 7,011.77

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Solution

The fourth proportional to 11,487.42, 15,854.13 and 7,011.77 is: 9,677.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.42 : 15,854.13 = 7,011.77 : x
  2. Step 2: Convert to fraction form
    11,487.42/15,854.13 = 7,011.77/x
  3. Step 3: Cross multiply
    11,487.42x = 15,854.13 × 7,011.77
  4. Step 4: Simplify right side
    11,487.42x = 111,165,433.84
  5. Step 5: Solve for x
    x = 111,165,433.84/11,487.42
  6. Step 6: Final answer
    x = 9,677.15

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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.