Home / 10,520.48-14,539.16-8,629.12

Finding the Fourth Proportional to 10,520.48, 14,539.16 and 8,629.12

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Solution

The fourth proportional to 10,520.48, 14,539.16 and 8,629.12 is: 11,925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.48 : 14,539.16 = 8,629.12 : x
  2. Step 2: Convert to fraction form
    10,520.48/14,539.16 = 8,629.12/x
  3. Step 3: Cross multiply
    10,520.48x = 14,539.16 × 8,629.12
  4. Step 4: Simplify right side
    10,520.48x = 125,460,156.34
  5. Step 5: Solve for x
    x = 125,460,156.34/10,520.48
  6. Step 6: Final answer
    x = 11,925.33

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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.