Home / 15,535.80-21,439.26-8,462.16

Finding the Fourth Proportional to 15,535.80, 21,439.26 and 8,462.16

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Solution

The fourth proportional to 15,535.80, 21,439.26 and 8,462.16 is: 11,677.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.80 : 21,439.26 = 8,462.16 : x
  2. Step 2: Convert to fraction form
    15,535.80/21,439.26 = 8,462.16/x
  3. Step 3: Cross multiply
    15,535.80x = 21,439.26 × 8,462.16
  4. Step 4: Simplify right side
    15,535.80x = 181,422,448.40
  5. Step 5: Solve for x
    x = 181,422,448.40/15,535.80
  6. Step 6: Final answer
    x = 11,677.70

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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.