Home / 8,389.49-11,572.65-5,030.34

Finding the Fourth Proportional to 8,389.49, 11,572.65 and 5,030.34

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Solution

The fourth proportional to 8,389.49, 11,572.65 and 5,030.34 is: 6,938.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.49 : 11,572.65 = 5,030.34 : x
  2. Step 2: Convert to fraction form
    8,389.49/11,572.65 = 5,030.34/x
  3. Step 3: Cross multiply
    8,389.49x = 11,572.65 × 5,030.34
  4. Step 4: Simplify right side
    8,389.49x = 58,214,320.80
  5. Step 5: Solve for x
    x = 58,214,320.80/8,389.49
  6. Step 6: Final answer
    x = 6,938.96

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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.