Home / 14,461.40-21,641.70-8,622.20

Finding the Fourth Proportional to 14,461.40, 21,641.70 and 8,622.20

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Solution

The fourth proportional to 14,461.40, 21,641.70 and 8,622.20 is: 12,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,461.40 : 21,641.70 = 8,622.20 : x
  2. Step 2: Convert to fraction form
    14,461.40/21,641.70 = 8,622.20/x
  3. Step 3: Cross multiply
    14,461.40x = 21,641.70 × 8,622.20
  4. Step 4: Simplify right side
    14,461.40x = 186,599,065.74
  5. Step 5: Solve for x
    x = 186,599,065.74/14,461.40
  6. Step 6: Final answer
    x = 12,903.25

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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.