Home / 14,097.32-21,123.10-8,239.40

Finding the Fourth Proportional to 14,097.32, 21,123.10 and 8,239.40

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Solution

The fourth proportional to 14,097.32, 21,123.10 and 8,239.40 is: 12,345.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,097.32 : 21,123.10 = 8,239.40 : x
  2. Step 2: Convert to fraction form
    14,097.32/21,123.10 = 8,239.40/x
  3. Step 3: Cross multiply
    14,097.32x = 21,123.10 × 8,239.40
  4. Step 4: Simplify right side
    14,097.32x = 174,041,670.14
  5. Step 5: Solve for x
    x = 174,041,670.14/14,097.32
  6. Step 6: Final answer
    x = 12,345.73

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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.