Home / 10,390.16-14,332.92-7,028.56

Finding the Fourth Proportional to 10,390.16, 14,332.92 and 7,028.56

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Solution

The fourth proportional to 10,390.16, 14,332.92 and 7,028.56 is: 9,695.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.16 : 14,332.92 = 7,028.56 : x
  2. Step 2: Convert to fraction form
    10,390.16/14,332.92 = 7,028.56/x
  3. Step 3: Cross multiply
    10,390.16x = 14,332.92 × 7,028.56
  4. Step 4: Simplify right side
    10,390.16x = 100,739,788.20
  5. Step 5: Solve for x
    x = 100,739,788.20/10,390.16
  6. Step 6: Final answer
    x = 9,695.69

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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.