Home / 14,148.18-21,216.69-4,785.66

Finding the Fourth Proportional to 14,148.18, 21,216.69 and 4,785.66

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Solution

The fourth proportional to 14,148.18, 21,216.69 and 4,785.66 is: 7,176.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,148.18 : 21,216.69 = 4,785.66 : x
  2. Step 2: Convert to fraction form
    14,148.18/21,216.69 = 4,785.66/x
  3. Step 3: Cross multiply
    14,148.18x = 21,216.69 × 4,785.66
  4. Step 4: Simplify right side
    14,148.18x = 101,535,864.67
  5. Step 5: Solve for x
    x = 101,535,864.67/14,148.18
  6. Step 6: Final answer
    x = 7,176.60

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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.