Home / 13,345.86-20,018.76-12,533.93

Finding the Fourth Proportional to 13,345.86, 20,018.76 and 12,533.93

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Solution

The fourth proportional to 13,345.86, 20,018.76 and 12,533.93 is: 18,800.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.86 : 20,018.76 = 12,533.93 : x
  2. Step 2: Convert to fraction form
    13,345.86/20,018.76 = 12,533.93/x
  3. Step 3: Cross multiply
    13,345.86x = 20,018.76 × 12,533.93
  4. Step 4: Simplify right side
    13,345.86x = 250,913,736.53
  5. Step 5: Solve for x
    x = 250,913,736.53/13,345.86
  6. Step 6: Final answer
    x = 18,800.87

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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.