Home / 13,921.08-19,211.24-7,547.69

Finding the Fourth Proportional to 13,921.08, 19,211.24 and 7,547.69

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Solution

The fourth proportional to 13,921.08, 19,211.24 and 7,547.69 is: 10,415.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.08 : 19,211.24 = 7,547.69 : x
  2. Step 2: Convert to fraction form
    13,921.08/19,211.24 = 7,547.69/x
  3. Step 3: Cross multiply
    13,921.08x = 19,211.24 × 7,547.69
  4. Step 4: Simplify right side
    13,921.08x = 145,000,350.24
  5. Step 5: Solve for x
    x = 145,000,350.24/13,921.08
  6. Step 6: Final answer
    x = 10,415.88

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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.