Home / 8,430.79-12,639.94-4,044.07

Finding the Fourth Proportional to 8,430.79, 12,639.94 and 4,044.07

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Solution

The fourth proportional to 8,430.79, 12,639.94 and 4,044.07 is: 6,063.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.79 : 12,639.94 = 4,044.07 : x
  2. Step 2: Convert to fraction form
    8,430.79/12,639.94 = 4,044.07/x
  3. Step 3: Cross multiply
    8,430.79x = 12,639.94 × 4,044.07
  4. Step 4: Simplify right side
    8,430.79x = 51,116,802.16
  5. Step 5: Solve for x
    x = 51,116,802.16/8,430.79
  6. Step 6: Final answer
    x = 6,063.11

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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.