Home / 14,437.47-21,628.16-8,178.20

Finding the Fourth Proportional to 14,437.47, 21,628.16 and 8,178.20

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Solution

The fourth proportional to 14,437.47, 21,628.16 and 8,178.20 is: 12,251.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,437.47 : 21,628.16 = 8,178.20 : x
  2. Step 2: Convert to fraction form
    14,437.47/21,628.16 = 8,178.20/x
  3. Step 3: Cross multiply
    14,437.47x = 21,628.16 × 8,178.20
  4. Step 4: Simplify right side
    14,437.47x = 176,879,418.11
  5. Step 5: Solve for x
    x = 176,879,418.11/14,437.47
  6. Step 6: Final answer
    x = 12,251.41

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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.