Home / 14,430.90-21,607.20-7,490.82

Finding the Fourth Proportional to 14,430.90, 21,607.20 and 7,490.82

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Solution

The fourth proportional to 14,430.90, 21,607.20 and 7,490.82 is: 11,215.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,430.90 : 21,607.20 = 7,490.82 : x
  2. Step 2: Convert to fraction form
    14,430.90/21,607.20 = 7,490.82/x
  3. Step 3: Cross multiply
    14,430.90x = 21,607.20 × 7,490.82
  4. Step 4: Simplify right side
    14,430.90x = 161,855,645.90
  5. Step 5: Solve for x
    x = 161,855,645.90/14,430.90
  6. Step 6: Final answer
    x = 11,215.91

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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.