Home / 14,655.08-20,223.86-7,940.72

Finding the Fourth Proportional to 14,655.08, 20,223.86 and 7,940.72

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Solution

The fourth proportional to 14,655.08, 20,223.86 and 7,940.72 is: 10,958.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,655.08 : 20,223.86 = 7,940.72 : x
  2. Step 2: Convert to fraction form
    14,655.08/20,223.86 = 7,940.72/x
  3. Step 3: Cross multiply
    14,655.08x = 20,223.86 × 7,940.72
  4. Step 4: Simplify right side
    14,655.08x = 160,592,009.58
  5. Step 5: Solve for x
    x = 160,592,009.58/14,655.08
  6. Step 6: Final answer
    x = 10,958.11

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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.