Home / 13,242.30-19,868.87-7,000.65

Finding the Fourth Proportional to 13,242.30, 19,868.87 and 7,000.65

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Solution

The fourth proportional to 13,242.30, 19,868.87 and 7,000.65 is: 10,503.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.30 : 19,868.87 = 7,000.65 : x
  2. Step 2: Convert to fraction form
    13,242.30/19,868.87 = 7,000.65/x
  3. Step 3: Cross multiply
    13,242.30x = 19,868.87 × 7,000.65
  4. Step 4: Simplify right side
    13,242.30x = 139,094,969.76
  5. Step 5: Solve for x
    x = 139,094,969.76/13,242.30
  6. Step 6: Final answer
    x = 10,503.84

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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.