Home / 15,465.48-21,342.38-8,750.98

Finding the Fourth Proportional to 15,465.48, 21,342.38 and 8,750.98

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Solution

The fourth proportional to 15,465.48, 21,342.38 and 8,750.98 is: 12,076.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,465.48 : 21,342.38 = 8,750.98 : x
  2. Step 2: Convert to fraction form
    15,465.48/21,342.38 = 8,750.98/x
  3. Step 3: Cross multiply
    15,465.48x = 21,342.38 × 8,750.98
  4. Step 4: Simplify right side
    15,465.48x = 186,766,740.53
  5. Step 5: Solve for x
    x = 186,766,740.53/15,465.48
  6. Step 6: Final answer
    x = 12,076.36

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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.