Home / 10,985.17-15,159.58-5,949.45

Finding the Fourth Proportional to 10,985.17, 15,159.58 and 5,949.45

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Solution

The fourth proportional to 10,985.17, 15,159.58 and 5,949.45 is: 8,210.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,985.17 : 15,159.58 = 5,949.45 : x
  2. Step 2: Convert to fraction form
    10,985.17/15,159.58 = 5,949.45/x
  3. Step 3: Cross multiply
    10,985.17x = 15,159.58 × 5,949.45
  4. Step 4: Simplify right side
    10,985.17x = 90,191,163.23
  5. Step 5: Solve for x
    x = 90,191,163.23/10,985.17
  6. Step 6: Final answer
    x = 8,210.27

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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.