Home / 14,931.12-22,389.84-7,131.36

Finding the Fourth Proportional to 14,931.12, 22,389.84 and 7,131.36

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Solution

The fourth proportional to 14,931.12, 22,389.84 and 7,131.36 is: 10,693.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,931.12 : 22,389.84 = 7,131.36 : x
  2. Step 2: Convert to fraction form
    14,931.12/22,389.84 = 7,131.36/x
  3. Step 3: Cross multiply
    14,931.12x = 22,389.84 × 7,131.36
  4. Step 4: Simplify right side
    14,931.12x = 159,670,009.38
  5. Step 5: Solve for x
    x = 159,670,009.38/14,931.12
  6. Step 6: Final answer
    x = 10,693.77

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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.