Home / 19,218.64-28,814.58-9,840.46

Finding the Fourth Proportional to 19,218.64, 28,814.58 and 9,840.46

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Solution

The fourth proportional to 19,218.64, 28,814.58 and 9,840.46 is: 14,753.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.64 : 28,814.58 = 9,840.46 : x
  2. Step 2: Convert to fraction form
    19,218.64/28,814.58 = 9,840.46/x
  3. Step 3: Cross multiply
    19,218.64x = 28,814.58 × 9,840.46
  4. Step 4: Simplify right side
    19,218.64x = 283,548,721.91
  5. Step 5: Solve for x
    x = 283,548,721.91/19,218.64
  6. Step 6: Final answer
    x = 14,753.84

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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.