Home / 14,690.52-20,271.87-8,315.28

Finding the Fourth Proportional to 14,690.52, 20,271.87 and 8,315.28

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Solution

The fourth proportional to 14,690.52, 20,271.87 and 8,315.28 is: 11,474.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,690.52 : 20,271.87 = 8,315.28 : x
  2. Step 2: Convert to fraction form
    14,690.52/20,271.87 = 8,315.28/x
  3. Step 3: Cross multiply
    14,690.52x = 20,271.87 × 8,315.28
  4. Step 4: Simplify right side
    14,690.52x = 168,566,275.17
  5. Step 5: Solve for x
    x = 168,566,275.17/14,690.52
  6. Step 6: Final answer
    x = 11,474.49

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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.