Home / 19,814.32-29,700.51-7,155.64

Finding the Fourth Proportional to 19,814.32, 29,700.51 and 7,155.64

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Solution

The fourth proportional to 19,814.32, 29,700.51 and 7,155.64 is: 10,725.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,814.32 : 29,700.51 = 7,155.64 : x
  2. Step 2: Convert to fraction form
    19,814.32/29,700.51 = 7,155.64/x
  3. Step 3: Cross multiply
    19,814.32x = 29,700.51 × 7,155.64
  4. Step 4: Simplify right side
    19,814.32x = 212,526,157.38
  5. Step 5: Solve for x
    x = 212,526,157.38/19,814.32
  6. Step 6: Final answer
    x = 10,725.89

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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.