Home / 13,547.10-20,322.54-4,187.88

Finding the Fourth Proportional to 13,547.10, 20,322.54 and 4,187.88

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Solution

The fourth proportional to 13,547.10, 20,322.54 and 4,187.88 is: 6,282.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.10 : 20,322.54 = 4,187.88 : x
  2. Step 2: Convert to fraction form
    13,547.10/20,322.54 = 4,187.88/x
  3. Step 3: Cross multiply
    13,547.10x = 20,322.54 × 4,187.88
  4. Step 4: Simplify right side
    13,547.10x = 85,108,358.82
  5. Step 5: Solve for x
    x = 85,108,358.82/13,547.10
  6. Step 6: Final answer
    x = 6,282.40

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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.