Home / 10,670.16-15,990.84-5,465.04

Finding the Fourth Proportional to 10,670.16, 15,990.84 and 5,465.04

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Solution

The fourth proportional to 10,670.16, 15,990.84 and 5,465.04 is: 8,190.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,670.16 : 15,990.84 = 5,465.04 : x
  2. Step 2: Convert to fraction form
    10,670.16/15,990.84 = 5,465.04/x
  3. Step 3: Cross multiply
    10,670.16x = 15,990.84 × 5,465.04
  4. Step 4: Simplify right side
    10,670.16x = 87,390,580.23
  5. Step 5: Solve for x
    x = 87,390,580.23/10,670.16
  6. Step 6: Final answer
    x = 8,190.18

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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.