Home / 15,535.60-21,439.55-8,462.48

Finding the Fourth Proportional to 15,535.60, 21,439.55 and 8,462.48

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Solution

The fourth proportional to 15,535.60, 21,439.55 and 8,462.48 is: 11,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.60 : 21,439.55 = 8,462.48 : x
  2. Step 2: Convert to fraction form
    15,535.60/21,439.55 = 8,462.48/x
  3. Step 3: Cross multiply
    15,535.60x = 21,439.55 × 8,462.48
  4. Step 4: Simplify right side
    15,535.60x = 181,431,725.71
  5. Step 5: Solve for x
    x = 181,431,725.71/15,535.60
  6. Step 6: Final answer
    x = 11,678.45

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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.