Home / 13,108.04-18,089.06-7,519

Finding the Fourth Proportional to 13,108.04, 18,089.06 and 7,519

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Solution

The fourth proportional to 13,108.04, 18,089.06 and 7,519 is: 10,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.04 : 18,089.06 = 7,519 : x
  2. Step 2: Convert to fraction form
    13,108.04/18,089.06 = 7,519/x
  3. Step 3: Cross multiply
    13,108.04x = 18,089.06 × 7,519
  4. Step 4: Simplify right side
    13,108.04x = 136,011,642.14
  5. Step 5: Solve for x
    x = 136,011,642.14/13,108.04
  6. Step 6: Final answer
    x = 10,376.20

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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.