Home / 14,360.48-21,437.74-12,491.81

Finding the Fourth Proportional to 14,360.48, 21,437.74 and 12,491.81

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Solution

The fourth proportional to 14,360.48, 21,437.74 and 12,491.81 is: 18,648.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,360.48 : 21,437.74 = 12,491.81 : x
  2. Step 2: Convert to fraction form
    14,360.48/21,437.74 = 12,491.81/x
  3. Step 3: Cross multiply
    14,360.48x = 21,437.74 × 12,491.81
  4. Step 4: Simplify right side
    14,360.48x = 267,796,174.91
  5. Step 5: Solve for x
    x = 267,796,174.91/14,360.48
  6. Step 6: Final answer
    x = 18,648.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.