Home / 11,064.84-15,254.55-10,720.86

Finding the Fourth Proportional to 11,064.84, 15,254.55 and 10,720.86

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Solution

The fourth proportional to 11,064.84, 15,254.55 and 10,720.86 is: 14,780.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,064.84 : 15,254.55 = 10,720.86 : x
  2. Step 2: Convert to fraction form
    11,064.84/15,254.55 = 10,720.86/x
  3. Step 3: Cross multiply
    11,064.84x = 15,254.55 × 10,720.86
  4. Step 4: Simplify right side
    11,064.84x = 163,541,894.91
  5. Step 5: Solve for x
    x = 163,541,894.91/11,064.84
  6. Step 6: Final answer
    x = 14,780.32

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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.