Home / 12,728,124.02-17,564,474.20-6,926,780.90

Finding the Fourth Proportional to 12,728,124.02, 17,564,474.20 and 6,926,780.90

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Solution

The fourth proportional to 12,728,124.02, 17,564,474.20 and 6,926,780.90 is: 9,558,774.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728,124.02 : 17,564,474.20 = 6,926,780.90 : x
  2. Step 2: Convert to fraction form
    12,728,124.02/17,564,474.20 = 6,926,780.90/x
  3. Step 3: Cross multiply
    12,728,124.02x = 17,564,474.20 × 6,926,780.90
  4. Step 4: Simplify right side
    12,728,124.02x = 121,665,264,407,102.78
  5. Step 5: Solve for x
    x = 121,665,264,407,102.78/12,728,124.02
  6. Step 6: Final answer
    x = 9,558,774.27

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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.