Home / 18,312.90-25,271.66-10,355.28

Finding the Fourth Proportional to 18,312.90, 25,271.66 and 10,355.28

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Solution

The fourth proportional to 18,312.90, 25,271.66 and 10,355.28 is: 14,290.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.90 : 25,271.66 = 10,355.28 : x
  2. Step 2: Convert to fraction form
    18,312.90/25,271.66 = 10,355.28/x
  3. Step 3: Cross multiply
    18,312.90x = 25,271.66 × 10,355.28
  4. Step 4: Simplify right side
    18,312.90x = 261,695,115.36
  5. Step 5: Solve for x
    x = 261,695,115.36/18,312.90
  6. Step 6: Final answer
    x = 14,290.21

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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.