Home / 13,130.04-19,702.92-5,231.16

Finding the Fourth Proportional to 13,130.04, 19,702.92 and 5,231.16

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Solution

The fourth proportional to 13,130.04, 19,702.92 and 5,231.16 is: 7,849.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.04 : 19,702.92 = 5,231.16 : x
  2. Step 2: Convert to fraction form
    13,130.04/19,702.92 = 5,231.16/x
  3. Step 3: Cross multiply
    13,130.04x = 19,702.92 × 5,231.16
  4. Step 4: Simplify right side
    13,130.04x = 103,069,126.99
  5. Step 5: Solve for x
    x = 103,069,126.99/13,130.04
  6. Step 6: Final answer
    x = 7,849.87

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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.