Home / 10,378.14-15,622.59-9,306.50

Finding the Fourth Proportional to 10,378.14, 15,622.59 and 9,306.50

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Solution

The fourth proportional to 10,378.14, 15,622.59 and 9,306.50 is: 14,009.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.14 : 15,622.59 = 9,306.50 : x
  2. Step 2: Convert to fraction form
    10,378.14/15,622.59 = 9,306.50/x
  3. Step 3: Cross multiply
    10,378.14x = 15,622.59 × 9,306.50
  4. Step 4: Simplify right side
    10,378.14x = 145,391,633.84
  5. Step 5: Solve for x
    x = 145,391,633.84/10,378.14
  6. Step 6: Final answer
    x = 14,009.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.