Home / 15,225.98-21,003.09-8,937.14

Finding the Fourth Proportional to 15,225.98, 21,003.09 and 8,937.14

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Solution

The fourth proportional to 15,225.98, 21,003.09 and 8,937.14 is: 12,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,225.98 : 21,003.09 = 8,937.14 : x
  2. Step 2: Convert to fraction form
    15,225.98/21,003.09 = 8,937.14/x
  3. Step 3: Cross multiply
    15,225.98x = 21,003.09 × 8,937.14
  4. Step 4: Simplify right side
    15,225.98x = 187,707,555.76
  5. Step 5: Solve for x
    x = 187,707,555.76/15,225.98
  6. Step 6: Final answer
    x = 12,328.11

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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.