Home / 10,310.10-15,461.55-5,378.10

Finding the Fourth Proportional to 10,310.10, 15,461.55 and 5,378.10

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Solution

The fourth proportional to 10,310.10, 15,461.55 and 5,378.10 is: 8,065.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,310.10 : 15,461.55 = 5,378.10 : x
  2. Step 2: Convert to fraction form
    10,310.10/15,461.55 = 5,378.10/x
  3. Step 3: Cross multiply
    10,310.10x = 15,461.55 × 5,378.10
  4. Step 4: Simplify right side
    10,310.10x = 83,153,762.06
  5. Step 5: Solve for x
    x = 83,153,762.06/10,310.10
  6. Step 6: Final answer
    x = 8,065.27

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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.