Home / 13,443.66-20,165.58-4,678.74

Finding the Fourth Proportional to 13,443.66, 20,165.58 and 4,678.74

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Solution

The fourth proportional to 13,443.66, 20,165.58 and 4,678.74 is: 7,018.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.66 : 20,165.58 = 4,678.74 : x
  2. Step 2: Convert to fraction form
    13,443.66/20,165.58 = 4,678.74/x
  3. Step 3: Cross multiply
    13,443.66x = 20,165.58 × 4,678.74
  4. Step 4: Simplify right side
    13,443.66x = 94,349,505.77
  5. Step 5: Solve for x
    x = 94,349,505.77/13,443.66
  6. Step 6: Final answer
    x = 7,018.14

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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.