Home / 10,087.12-15,124.74-4,242.16

Finding the Fourth Proportional to 10,087.12, 15,124.74 and 4,242.16

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Solution

The fourth proportional to 10,087.12, 15,124.74 and 4,242.16 is: 6,360.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.12 : 15,124.74 = 4,242.16 : x
  2. Step 2: Convert to fraction form
    10,087.12/15,124.74 = 4,242.16/x
  3. Step 3: Cross multiply
    10,087.12x = 15,124.74 × 4,242.16
  4. Step 4: Simplify right side
    10,087.12x = 64,161,567.04
  5. Step 5: Solve for x
    x = 64,161,567.04/10,087.12
  6. Step 6: Final answer
    x = 6,360.74

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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.