Home / 14,320.85-21,458.18-7,750.13

Finding the Fourth Proportional to 14,320.85, 21,458.18 and 7,750.13

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Solution

The fourth proportional to 14,320.85, 21,458.18 and 7,750.13 is: 11,612.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,320.85 : 21,458.18 = 7,750.13 : x
  2. Step 2: Convert to fraction form
    14,320.85/21,458.18 = 7,750.13/x
  3. Step 3: Cross multiply
    14,320.85x = 21,458.18 × 7,750.13
  4. Step 4: Simplify right side
    14,320.85x = 166,303,596.65
  5. Step 5: Solve for x
    x = 166,303,596.65/14,320.85
  6. Step 6: Final answer
    x = 11,612.69

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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.