Home / 14,510.40-21,769.65-7,115.10

Finding the Fourth Proportional to 14,510.40, 21,769.65 and 7,115.10

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Solution

The fourth proportional to 14,510.40, 21,769.65 and 7,115.10 is: 10,674.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,510.40 : 21,769.65 = 7,115.10 : x
  2. Step 2: Convert to fraction form
    14,510.40/21,769.65 = 7,115.10/x
  3. Step 3: Cross multiply
    14,510.40x = 21,769.65 × 7,115.10
  4. Step 4: Simplify right side
    14,510.40x = 154,893,236.72
  5. Step 5: Solve for x
    x = 154,893,236.72/14,510.40
  6. Step 6: Final answer
    x = 10,674.64

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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.