Home / 18,810.04-25,960.28-12,355.20

Finding the Fourth Proportional to 18,810.04, 25,960.28 and 12,355.20

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Solution

The fourth proportional to 18,810.04, 25,960.28 and 12,355.20 is: 17,051.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.04 : 25,960.28 = 12,355.20 : x
  2. Step 2: Convert to fraction form
    18,810.04/25,960.28 = 12,355.20/x
  3. Step 3: Cross multiply
    18,810.04x = 25,960.28 × 12,355.20
  4. Step 4: Simplify right side
    18,810.04x = 320,744,451.46
  5. Step 5: Solve for x
    x = 320,744,451.46/18,810.04
  6. Step 6: Final answer
    x = 17,051.77

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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.