Home / 13,285.28-18,330-10,482.08

Finding the Fourth Proportional to 13,285.28, 18,330 and 10,482.08

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Solution

The fourth proportional to 13,285.28, 18,330 and 10,482.08 is: 14,462.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.28 : 18,330 = 10,482.08 : x
  2. Step 2: Convert to fraction form
    13,285.28/18,330 = 10,482.08/x
  3. Step 3: Cross multiply
    13,285.28x = 18,330 × 10,482.08
  4. Step 4: Simplify right side
    13,285.28x = 192,136,526.40
  5. Step 5: Solve for x
    x = 192,136,526.40/13,285.28
  6. Step 6: Final answer
    x = 14,462.36

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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.