Home / 11,500.60-15,870.14-6,786.36

Finding the Fourth Proportional to 11,500.60, 15,870.14 and 6,786.36

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Solution

The fourth proportional to 11,500.60, 15,870.14 and 6,786.36 is: 9,364.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,500.60 : 15,870.14 = 6,786.36 : x
  2. Step 2: Convert to fraction form
    11,500.60/15,870.14 = 6,786.36/x
  3. Step 3: Cross multiply
    11,500.60x = 15,870.14 × 6,786.36
  4. Step 4: Simplify right side
    11,500.60x = 107,700,483.29
  5. Step 5: Solve for x
    x = 107,700,483.29/11,500.60
  6. Step 6: Final answer
    x = 9,364.77

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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.