Home / 10,520.16-14,511.60-7,390.32

Finding the Fourth Proportional to 10,520.16, 14,511.60 and 7,390.32

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Solution

The fourth proportional to 10,520.16, 14,511.60 and 7,390.32 is: 10,194.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.16 : 14,511.60 = 7,390.32 : x
  2. Step 2: Convert to fraction form
    10,520.16/14,511.60 = 7,390.32/x
  3. Step 3: Cross multiply
    10,520.16x = 14,511.60 × 7,390.32
  4. Step 4: Simplify right side
    10,520.16x = 107,245,367.71
  5. Step 5: Solve for x
    x = 107,245,367.71/10,520.16
  6. Step 6: Final answer
    x = 10,194.27

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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.