Home / 13,430.49-20,148.06-4,545.87

Finding the Fourth Proportional to 13,430.49, 20,148.06 and 4,545.87

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Solution

The fourth proportional to 13,430.49, 20,148.06 and 4,545.87 is: 6,819.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.49 : 20,148.06 = 4,545.87 : x
  2. Step 2: Convert to fraction form
    13,430.49/20,148.06 = 4,545.87/x
  3. Step 3: Cross multiply
    13,430.49x = 20,148.06 × 4,545.87
  4. Step 4: Simplify right side
    13,430.49x = 91,590,461.51
  5. Step 5: Solve for x
    x = 91,590,461.51/13,430.49
  6. Step 6: Final answer
    x = 6,819.59

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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.