Home / 10,513.08-15,746.58-6,400.44

Finding the Fourth Proportional to 10,513.08, 15,746.58 and 6,400.44

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Solution

The fourth proportional to 10,513.08, 15,746.58 and 6,400.44 is: 9,586.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.08 : 15,746.58 = 6,400.44 : x
  2. Step 2: Convert to fraction form
    10,513.08/15,746.58 = 6,400.44/x
  3. Step 3: Cross multiply
    10,513.08x = 15,746.58 × 6,400.44
  4. Step 4: Simplify right side
    10,513.08x = 100,785,040.50
  5. Step 5: Solve for x
    x = 100,785,040.50/10,513.08
  6. Step 6: Final answer
    x = 9,586.63

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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.