Home / 10,125.48-15,176.70-4,919.40

Finding the Fourth Proportional to 10,125.48, 15,176.70 and 4,919.40

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Solution

The fourth proportional to 10,125.48, 15,176.70 and 4,919.40 is: 7,373.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.48 : 15,176.70 = 4,919.40 : x
  2. Step 2: Convert to fraction form
    10,125.48/15,176.70 = 4,919.40/x
  3. Step 3: Cross multiply
    10,125.48x = 15,176.70 × 4,919.40
  4. Step 4: Simplify right side
    10,125.48x = 74,660,257.98
  5. Step 5: Solve for x
    x = 74,660,257.98/10,125.48
  6. Step 6: Final answer
    x = 7,373.50

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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.