Home / 9,403.90-12,977.19-5,212.06

Finding the Fourth Proportional to 9,403.90, 12,977.19 and 5,212.06

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Solution

The fourth proportional to 9,403.90, 12,977.19 and 5,212.06 is: 7,192.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.90 : 12,977.19 = 5,212.06 : x
  2. Step 2: Convert to fraction form
    9,403.90/12,977.19 = 5,212.06/x
  3. Step 3: Cross multiply
    9,403.90x = 12,977.19 × 5,212.06
  4. Step 4: Simplify right side
    9,403.90x = 67,637,892.91
  5. Step 5: Solve for x
    x = 67,637,892.91/9,403.90
  6. Step 6: Final answer
    x = 7,192.54

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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.