Home / 13,345.41-20,018.11-12,533.50

Finding the Fourth Proportional to 13,345.41, 20,018.11 and 12,533.50

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Solution

The fourth proportional to 13,345.41, 20,018.11 and 12,533.50 is: 18,800.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.41 : 20,018.11 = 12,533.50 : x
  2. Step 2: Convert to fraction form
    13,345.41/20,018.11 = 12,533.50/x
  3. Step 3: Cross multiply
    13,345.41x = 20,018.11 × 12,533.50
  4. Step 4: Simplify right side
    13,345.41x = 250,896,981.69
  5. Step 5: Solve for x
    x = 250,896,981.69/13,345.41
  6. Step 6: Final answer
    x = 18,800.25

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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.