Home / 7,007.20-10,507.92-5,616.16

Finding the Fourth Proportional to 7,007.20, 10,507.92 and 5,616.16

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Solution

The fourth proportional to 7,007.20, 10,507.92 and 5,616.16 is: 8,421.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.20 : 10,507.92 = 5,616.16 : x
  2. Step 2: Convert to fraction form
    7,007.20/10,507.92 = 5,616.16/x
  3. Step 3: Cross multiply
    7,007.20x = 10,507.92 × 5,616.16
  4. Step 4: Simplify right side
    7,007.20x = 59,014,159.99
  5. Step 5: Solve for x
    x = 59,014,159.99/7,007.20
  6. Step 6: Final answer
    x = 8,421.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.