Home / 13,575.47-20,358.21-4,688.54

Finding the Fourth Proportional to 13,575.47, 20,358.21 and 4,688.54

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Solution

The fourth proportional to 13,575.47, 20,358.21 and 4,688.54 is: 7,031.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.47 : 20,358.21 = 4,688.54 : x
  2. Step 2: Convert to fraction form
    13,575.47/20,358.21 = 4,688.54/x
  3. Step 3: Cross multiply
    13,575.47x = 20,358.21 × 4,688.54
  4. Step 4: Simplify right side
    13,575.47x = 95,450,332.81
  5. Step 5: Solve for x
    x = 95,450,332.81/13,575.47
  6. Step 6: Final answer
    x = 7,031.09

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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.