Home / 10,547.52-15,810.84-4,991.04

Finding the Fourth Proportional to 10,547.52, 15,810.84 and 4,991.04

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Solution

The fourth proportional to 10,547.52, 15,810.84 and 4,991.04 is: 7,481.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,547.52 : 15,810.84 = 4,991.04 : x
  2. Step 2: Convert to fraction form
    10,547.52/15,810.84 = 4,991.04/x
  3. Step 3: Cross multiply
    10,547.52x = 15,810.84 × 4,991.04
  4. Step 4: Simplify right side
    10,547.52x = 78,912,534.87
  5. Step 5: Solve for x
    x = 78,912,534.87/10,547.52
  6. Step 6: Final answer
    x = 7,481.62

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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.