Home / 9,357.24-12,913.44-5,165.76

Finding the Fourth Proportional to 9,357.24, 12,913.44 and 5,165.76

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Solution

The fourth proportional to 9,357.24, 12,913.44 and 5,165.76 is: 7,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,357.24 : 12,913.44 = 5,165.76 : x
  2. Step 2: Convert to fraction form
    9,357.24/12,913.44 = 5,165.76/x
  3. Step 3: Cross multiply
    9,357.24x = 12,913.44 × 5,165.76
  4. Step 4: Simplify right side
    9,357.24x = 66,707,731.81
  5. Step 5: Solve for x
    x = 66,707,731.81/9,357.24
  6. Step 6: Final answer
    x = 7,129.00

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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.