Home / 14,281.92-21,430.17-6,489.72

Finding the Fourth Proportional to 14,281.92, 21,430.17 and 6,489.72

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Solution

The fourth proportional to 14,281.92, 21,430.17 and 6,489.72 is: 9,737.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,281.92 : 21,430.17 = 6,489.72 : x
  2. Step 2: Convert to fraction form
    14,281.92/21,430.17 = 6,489.72/x
  3. Step 3: Cross multiply
    14,281.92x = 21,430.17 × 6,489.72
  4. Step 4: Simplify right side
    14,281.92x = 139,075,802.85
  5. Step 5: Solve for x
    x = 139,075,802.85/14,281.92
  6. Step 6: Final answer
    x = 9,737.89

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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.