Home / 14,276.18-19,700.58-7,988.56

Finding the Fourth Proportional to 14,276.18, 19,700.58 and 7,988.56

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Solution

The fourth proportional to 14,276.18, 19,700.58 and 7,988.56 is: 11,023.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,276.18 : 19,700.58 = 7,988.56 : x
  2. Step 2: Convert to fraction form
    14,276.18/19,700.58 = 7,988.56/x
  3. Step 3: Cross multiply
    14,276.18x = 19,700.58 × 7,988.56
  4. Step 4: Simplify right side
    14,276.18x = 157,379,265.36
  5. Step 5: Solve for x
    x = 157,379,265.36/14,276.18
  6. Step 6: Final answer
    x = 11,023.91

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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.