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Finding the Fourth Proportional to 13,803.40, 19,048.69 and 7,753.65

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Solution

The fourth proportional to 13,803.40, 19,048.69 and 7,753.65 is: 10,700.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.40 : 19,048.69 = 7,753.65 : x
  2. Step 2: Convert to fraction form
    13,803.40/19,048.69 = 7,753.65/x
  3. Step 3: Cross multiply
    13,803.40x = 19,048.69 × 7,753.65
  4. Step 4: Simplify right side
    13,803.40x = 147,696,779.98
  5. Step 5: Solve for x
    x = 147,696,779.98/13,803.40
  6. Step 6: Final answer
    x = 10,700.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.