Home / 13,803.30-19,047.21-7,752.15

Finding the Fourth Proportional to 13,803.30, 19,047.21 and 7,752.15

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Solution

The fourth proportional to 13,803.30, 19,047.21 and 7,752.15 is: 10,697.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.30 : 19,047.21 = 7,752.15 : x
  2. Step 2: Convert to fraction form
    13,803.30/19,047.21 = 7,752.15/x
  3. Step 3: Cross multiply
    13,803.30x = 19,047.21 × 7,752.15
  4. Step 4: Simplify right side
    13,803.30x = 147,656,829.00
  5. Step 5: Solve for x
    x = 147,656,829.00/13,803.30
  6. Step 6: Final answer
    x = 10,697.21

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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.