Home / 12,437.92-18,637.33-8,686.00

Finding the Fourth Proportional to 12,437.92, 18,637.33 and 8,686.00

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Solution

The fourth proportional to 12,437.92, 18,637.33 and 8,686.00 is: 13,015.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.92 : 18,637.33 = 8,686.00 : x
  2. Step 2: Convert to fraction form
    12,437.92/18,637.33 = 8,686.00/x
  3. Step 3: Cross multiply
    12,437.92x = 18,637.33 × 8,686.00
  4. Step 4: Simplify right side
    12,437.92x = 161,883,755.19
  5. Step 5: Solve for x
    x = 161,883,755.19/12,437.92
  6. Step 6: Final answer
    x = 13,015.35

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1.5x scale

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.