Home / 10,970.60-16,431.60-8,497.40

Finding the Fourth Proportional to 10,970.60, 16,431.60 and 8,497.40

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Solution

The fourth proportional to 10,970.60, 16,431.60 and 8,497.40 is: 12,727.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,970.60 : 16,431.60 = 8,497.40 : x
  2. Step 2: Convert to fraction form
    10,970.60/16,431.60 = 8,497.40/x
  3. Step 3: Cross multiply
    10,970.60x = 16,431.60 × 8,497.40
  4. Step 4: Simplify right side
    10,970.60x = 139,625,877.84
  5. Step 5: Solve for x
    x = 139,625,877.84/10,970.60
  6. Step 6: Final answer
    x = 12,727.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.