Home / 7,155.86-9,875.58-4,012.26

Finding the Fourth Proportional to 7,155.86, 9,875.58 and 4,012.26

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Solution

The fourth proportional to 7,155.86, 9,875.58 and 4,012.26 is: 5,537.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.86 : 9,875.58 = 4,012.26 : x
  2. Step 2: Convert to fraction form
    7,155.86/9,875.58 = 4,012.26/x
  3. Step 3: Cross multiply
    7,155.86x = 9,875.58 × 4,012.26
  4. Step 4: Simplify right side
    7,155.86x = 39,623,394.61
  5. Step 5: Solve for x
    x = 39,623,394.61/7,155.86
  6. Step 6: Final answer
    x = 5,537.20

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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.