Home / 7,155.15-9,873.16-4,130.37

Finding the Fourth Proportional to 7,155.15, 9,873.16 and 4,130.37

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Solution

The fourth proportional to 7,155.15, 9,873.16 and 4,130.37 is: 5,699.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.15 : 9,873.16 = 4,130.37 : x
  2. Step 2: Convert to fraction form
    7,155.15/9,873.16 = 4,130.37/x
  3. Step 3: Cross multiply
    7,155.15x = 9,873.16 × 4,130.37
  4. Step 4: Simplify right side
    7,155.15x = 40,779,793.54
  5. Step 5: Solve for x
    x = 40,779,793.54/7,155.15
  6. Step 6: Final answer
    x = 5,699.37

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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.