Home / 10,520.58-14,520.28-6,271.92

Finding the Fourth Proportional to 10,520.58, 14,520.28 and 6,271.92

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Solution

The fourth proportional to 10,520.58, 14,520.28 and 6,271.92 is: 8,656.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.58 : 14,520.28 = 6,271.92 : x
  2. Step 2: Convert to fraction form
    10,520.58/14,520.28 = 6,271.92/x
  3. Step 3: Cross multiply
    10,520.58x = 14,520.28 × 6,271.92
  4. Step 4: Simplify right side
    10,520.58x = 91,070,034.54
  5. Step 5: Solve for x
    x = 91,070,034.54/10,520.58
  6. Step 6: Final answer
    x = 8,656.37

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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.