Home / 12,030.64-18,045.54-4,239.28

Finding the Fourth Proportional to 12,030.64, 18,045.54 and 4,239.28

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Solution

The fourth proportional to 12,030.64, 18,045.54 and 4,239.28 is: 6,358.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,030.64 : 18,045.54 = 4,239.28 : x
  2. Step 2: Convert to fraction form
    12,030.64/18,045.54 = 4,239.28/x
  3. Step 3: Cross multiply
    12,030.64x = 18,045.54 × 4,239.28
  4. Step 4: Simplify right side
    12,030.64x = 76,500,096.81
  5. Step 5: Solve for x
    x = 76,500,096.81/12,030.64
  6. Step 6: Final answer
    x = 6,358.77

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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.