Home / 12,435.61-18,624.71-11,328.45

Finding the Fourth Proportional to 12,435.61, 18,624.71 and 11,328.45

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Solution

The fourth proportional to 12,435.61, 18,624.71 and 11,328.45 is: 16,966.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.61 : 18,624.71 = 11,328.45 : x
  2. Step 2: Convert to fraction form
    12,435.61/18,624.71 = 11,328.45/x
  3. Step 3: Cross multiply
    12,435.61x = 18,624.71 × 11,328.45
  4. Step 4: Simplify right side
    12,435.61x = 210,989,096.00
  5. Step 5: Solve for x
    x = 210,989,096.00/12,435.61
  6. Step 6: Final answer
    x = 16,966.53

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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.