Home / 10,389.16-15,583.98-2,993.80

Finding the Fourth Proportional to 10,389.16, 15,583.98 and 2,993.80

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Solution

The fourth proportional to 10,389.16, 15,583.98 and 2,993.80 is: 4,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.16 : 15,583.98 = 2,993.80 : x
  2. Step 2: Convert to fraction form
    10,389.16/15,583.98 = 2,993.80/x
  3. Step 3: Cross multiply
    10,389.16x = 15,583.98 × 2,993.80
  4. Step 4: Simplify right side
    10,389.16x = 46,655,319.32
  5. Step 5: Solve for x
    x = 46,655,319.32/10,389.16
  6. Step 6: Final answer
    x = 4,490.77

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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.