Home / 14,139.84-21,214.08-4,912.32

Finding the Fourth Proportional to 14,139.84, 21,214.08 and 4,912.32

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Solution

The fourth proportional to 14,139.84, 21,214.08 and 4,912.32 is: 7,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.84 : 21,214.08 = 4,912.32 : x
  2. Step 2: Convert to fraction form
    14,139.84/21,214.08 = 4,912.32/x
  3. Step 3: Cross multiply
    14,139.84x = 21,214.08 × 4,912.32
  4. Step 4: Simplify right side
    14,139.84x = 104,210,349.47
  5. Step 5: Solve for x
    x = 104,210,349.47/14,139.84
  6. Step 6: Final answer
    x = 7,369.98

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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.