Home / 10,005.48-15,011.46-4,810.68

Finding the Fourth Proportional to 10,005.48, 15,011.46 and 4,810.68

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Solution

The fourth proportional to 10,005.48, 15,011.46 and 4,810.68 is: 7,217.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.48 : 15,011.46 = 4,810.68 : x
  2. Step 2: Convert to fraction form
    10,005.48/15,011.46 = 4,810.68/x
  3. Step 3: Cross multiply
    10,005.48x = 15,011.46 × 4,810.68
  4. Step 4: Simplify right side
    10,005.48x = 72,215,330.39
  5. Step 5: Solve for x
    x = 72,215,330.39/10,005.48
  6. Step 6: Final answer
    x = 7,217.58

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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.