Home / 13,772.04-20,607.02-8,228.40

Finding the Fourth Proportional to 13,772.04, 20,607.02 and 8,228.40

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Solution

The fourth proportional to 13,772.04, 20,607.02 and 8,228.40 is: 12,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.04 : 20,607.02 = 8,228.40 : x
  2. Step 2: Convert to fraction form
    13,772.04/20,607.02 = 8,228.40/x
  3. Step 3: Cross multiply
    13,772.04x = 20,607.02 × 8,228.40
  4. Step 4: Simplify right side
    13,772.04x = 169,562,803.37
  5. Step 5: Solve for x
    x = 169,562,803.37/13,772.04
  6. Step 6: Final answer
    x = 12,312.11

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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.