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Finding the Fourth Proportional to 9,676.80, 14,482.80 and 8,510.40

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Solution

The fourth proportional to 9,676.80, 14,482.80 and 8,510.40 is: 12,737.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,676.80 : 14,482.80 = 8,510.40 : x
  2. Step 2: Convert to fraction form
    9,676.80/14,482.80 = 8,510.40/x
  3. Step 3: Cross multiply
    9,676.80x = 14,482.80 × 8,510.40
  4. Step 4: Simplify right side
    9,676.80x = 123,254,421.12
  5. Step 5: Solve for x
    x = 123,254,421.12/9,676.80
  6. Step 6: Final answer
    x = 12,737.11

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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.