Home / 14,488.51-19,994.63-8,520.74

Finding the Fourth Proportional to 14,488.51, 19,994.63 and 8,520.74

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Solution

The fourth proportional to 14,488.51, 19,994.63 and 8,520.74 is: 11,758.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,488.51 : 19,994.63 = 8,520.74 : x
  2. Step 2: Convert to fraction form
    14,488.51/19,994.63 = 8,520.74/x
  3. Step 3: Cross multiply
    14,488.51x = 19,994.63 × 8,520.74
  4. Step 4: Simplify right side
    14,488.51x = 170,369,043.63
  5. Step 5: Solve for x
    x = 170,369,043.63/14,488.51
  6. Step 6: Final answer
    x = 11,758.91

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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.