Home / 14,768.21-20,355.81-10,455.77

Finding the Fourth Proportional to 14,768.21, 20,355.81 and 10,455.77

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Solution

The fourth proportional to 14,768.21, 20,355.81 and 10,455.77 is: 14,411.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,768.21 : 20,355.81 = 10,455.77 : x
  2. Step 2: Convert to fraction form
    14,768.21/20,355.81 = 10,455.77/x
  3. Step 3: Cross multiply
    14,768.21x = 20,355.81 × 10,455.77
  4. Step 4: Simplify right side
    14,768.21x = 212,835,565.74
  5. Step 5: Solve for x
    x = 212,835,565.74/14,768.21
  6. Step 6: Final answer
    x = 14,411.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.