Home / 11,719.77-16,170.08-7,530.45

Finding the Fourth Proportional to 11,719.77, 16,170.08 and 7,530.45

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Solution

The fourth proportional to 11,719.77, 16,170.08 and 7,530.45 is: 10,389.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,719.77 : 16,170.08 = 7,530.45 : x
  2. Step 2: Convert to fraction form
    11,719.77/16,170.08 = 7,530.45/x
  3. Step 3: Cross multiply
    11,719.77x = 16,170.08 × 7,530.45
  4. Step 4: Simplify right side
    11,719.77x = 121,767,941.28
  5. Step 5: Solve for x
    x = 121,767,941.28/11,719.77
  6. Step 6: Final answer
    x = 10,389.96

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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.