Home / 10,314.45-14,212.80-8,528.40

Finding the Fourth Proportional to 10,314.45, 14,212.80 and 8,528.40

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Solution

The fourth proportional to 10,314.45, 14,212.80 and 8,528.40 is: 11,751.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,314.45 : 14,212.80 = 8,528.40 : x
  2. Step 2: Convert to fraction form
    10,314.45/14,212.80 = 8,528.40/x
  3. Step 3: Cross multiply
    10,314.45x = 14,212.80 × 8,528.40
  4. Step 4: Simplify right side
    10,314.45x = 121,212,443.52
  5. Step 5: Solve for x
    x = 121,212,443.52/10,314.45
  6. Step 6: Final answer
    x = 11,751.71

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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.