Home / 13,688.74-20,523.90-7,443.46

Finding the Fourth Proportional to 13,688.74, 20,523.90 and 7,443.46

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Solution

The fourth proportional to 13,688.74, 20,523.90 and 7,443.46 is: 11,160.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.74 : 20,523.90 = 7,443.46 : x
  2. Step 2: Convert to fraction form
    13,688.74/20,523.90 = 7,443.46/x
  3. Step 3: Cross multiply
    13,688.74x = 20,523.90 × 7,443.46
  4. Step 4: Simplify right side
    13,688.74x = 152,768,828.69
  5. Step 5: Solve for x
    x = 152,768,828.69/13,688.74
  6. Step 6: Final answer
    x = 11,160.18

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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.