Home / 10,982.34-15,155.28-6,506.12

Finding the Fourth Proportional to 10,982.34, 15,155.28 and 6,506.12

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Solution

The fourth proportional to 10,982.34, 15,155.28 and 6,506.12 is: 8,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,982.34 : 15,155.28 = 6,506.12 : x
  2. Step 2: Convert to fraction form
    10,982.34/15,155.28 = 6,506.12/x
  3. Step 3: Cross multiply
    10,982.34x = 15,155.28 × 6,506.12
  4. Step 4: Simplify right side
    10,982.34x = 98,602,070.31
  5. Step 5: Solve for x
    x = 98,602,070.31/10,982.34
  6. Step 6: Final answer
    x = 8,978.24

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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.