Home / 13,306.16-18,361.45-7,337.50

Finding the Fourth Proportional to 13,306.16, 18,361.45 and 7,337.50

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Solution

The fourth proportional to 13,306.16, 18,361.45 and 7,337.50 is: 10,125.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.16 : 18,361.45 = 7,337.50 : x
  2. Step 2: Convert to fraction form
    13,306.16/18,361.45 = 7,337.50/x
  3. Step 3: Cross multiply
    13,306.16x = 18,361.45 × 7,337.50
  4. Step 4: Simplify right side
    13,306.16x = 134,727,139.38
  5. Step 5: Solve for x
    x = 134,727,139.38/13,306.16
  6. Step 6: Final answer
    x = 10,125.17

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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.