Home / 10,147.50-15,225.81-6,448.77

Finding the Fourth Proportional to 10,147.50, 15,225.81 and 6,448.77

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Solution

The fourth proportional to 10,147.50, 15,225.81 and 6,448.77 is: 9,676.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.50 : 15,225.81 = 6,448.77 : x
  2. Step 2: Convert to fraction form
    10,147.50/15,225.81 = 6,448.77/x
  3. Step 3: Cross multiply
    10,147.50x = 15,225.81 × 6,448.77
  4. Step 4: Simplify right side
    10,147.50x = 98,187,746.75
  5. Step 5: Solve for x
    x = 98,187,746.75/10,147.50
  6. Step 6: Final answer
    x = 9,676.05

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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.