Home / 10,417.16-15,630.60-5,158.64

Finding the Fourth Proportional to 10,417.16, 15,630.60 and 5,158.64

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Solution

The fourth proportional to 10,417.16, 15,630.60 and 5,158.64 is: 7,740.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,417.16 : 15,630.60 = 5,158.64 : x
  2. Step 2: Convert to fraction form
    10,417.16/15,630.60 = 5,158.64/x
  3. Step 3: Cross multiply
    10,417.16x = 15,630.60 × 5,158.64
  4. Step 4: Simplify right side
    10,417.16x = 80,632,638.38
  5. Step 5: Solve for x
    x = 80,632,638.38/10,417.16
  6. Step 6: Final answer
    x = 7,740.37

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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.