Home / 13,937.10-19,226.76-8,898.78

Finding the Fourth Proportional to 13,937.10, 19,226.76 and 8,898.78

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Solution

The fourth proportional to 13,937.10, 19,226.76 and 8,898.78 is: 12,276.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.10 : 19,226.76 = 8,898.78 : x
  2. Step 2: Convert to fraction form
    13,937.10/19,226.76 = 8,898.78/x
  3. Step 3: Cross multiply
    13,937.10x = 19,226.76 × 8,898.78
  4. Step 4: Simplify right side
    13,937.10x = 171,094,707.35
  5. Step 5: Solve for x
    x = 171,094,707.35/13,937.10
  6. Step 6: Final answer
    x = 12,276.21

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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.