Home / 9,020.68-12,440.47-5,663.81

Finding the Fourth Proportional to 9,020.68, 12,440.47 and 5,663.81

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Solution

The fourth proportional to 9,020.68, 12,440.47 and 5,663.81 is: 7,810.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,020.68 : 12,440.47 = 5,663.81 : x
  2. Step 2: Convert to fraction form
    9,020.68/12,440.47 = 5,663.81/x
  3. Step 3: Cross multiply
    9,020.68x = 12,440.47 × 5,663.81
  4. Step 4: Simplify right side
    9,020.68x = 70,460,367.87
  5. Step 5: Solve for x
    x = 70,460,367.87/9,020.68
  6. Step 6: Final answer
    x = 7,810.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.