Home / 15,432.72-21,297.02-8,358.98

Finding the Fourth Proportional to 15,432.72, 21,297.02 and 8,358.98

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Solution

The fourth proportional to 15,432.72, 21,297.02 and 8,358.98 is: 11,535.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.72 : 21,297.02 = 8,358.98 : x
  2. Step 2: Convert to fraction form
    15,432.72/21,297.02 = 8,358.98/x
  3. Step 3: Cross multiply
    15,432.72x = 21,297.02 × 8,358.98
  4. Step 4: Simplify right side
    15,432.72x = 178,021,364.24
  5. Step 5: Solve for x
    x = 178,021,364.24/15,432.72
  6. Step 6: Final answer
    x = 11,535.32

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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.