Home / 12,154.24-18,225.28-5,574.81

Finding the Fourth Proportional to 12,154.24, 18,225.28 and 5,574.81

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Solution

The fourth proportional to 12,154.24, 18,225.28 and 5,574.81 is: 8,359.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154.24 : 18,225.28 = 5,574.81 : x
  2. Step 2: Convert to fraction form
    12,154.24/18,225.28 = 5,574.81/x
  3. Step 3: Cross multiply
    12,154.24x = 18,225.28 × 5,574.81
  4. Step 4: Simplify right side
    12,154.24x = 101,602,473.20
  5. Step 5: Solve for x
    x = 101,602,473.20/12,154.24
  6. Step 6: Final answer
    x = 8,359.43

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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.