Home / 14,359.12-19,816.18-7,985.68

Finding the Fourth Proportional to 14,359.12, 19,816.18 and 7,985.68

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Solution

The fourth proportional to 14,359.12, 19,816.18 and 7,985.68 is: 11,020.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,359.12 : 19,816.18 = 7,985.68 : x
  2. Step 2: Convert to fraction form
    14,359.12/19,816.18 = 7,985.68/x
  3. Step 3: Cross multiply
    14,359.12x = 19,816.18 × 7,985.68
  4. Step 4: Simplify right side
    14,359.12x = 158,245,602.80
  5. Step 5: Solve for x
    x = 158,245,602.80/14,359.12
  6. Step 6: Final answer
    x = 11,020.57

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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.