Home / 10,353.62-15,482.72-7,690.23

Finding the Fourth Proportional to 10,353.62, 15,482.72 and 7,690.23

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Solution

The fourth proportional to 10,353.62, 15,482.72 and 7,690.23 is: 11,499.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,353.62 : 15,482.72 = 7,690.23 : x
  2. Step 2: Convert to fraction form
    10,353.62/15,482.72 = 7,690.23/x
  3. Step 3: Cross multiply
    10,353.62x = 15,482.72 × 7,690.23
  4. Step 4: Simplify right side
    10,353.62x = 119,065,639.37
  5. Step 5: Solve for x
    x = 119,065,639.37/10,353.62
  6. Step 6: Final answer
    x = 11,499.91

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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.