Home / 19,157.90-26,438.13-10,774.40

Finding the Fourth Proportional to 19,157.90, 26,438.13 and 10,774.40

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Solution

The fourth proportional to 19,157.90, 26,438.13 and 10,774.40 is: 14,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.90 : 26,438.13 = 10,774.40 : x
  2. Step 2: Convert to fraction form
    19,157.90/26,438.13 = 10,774.40/x
  3. Step 3: Cross multiply
    19,157.90x = 26,438.13 × 10,774.40
  4. Step 4: Simplify right side
    19,157.90x = 284,854,855.68
  5. Step 5: Solve for x
    x = 284,854,855.68/19,157.90
  6. Step 6: Final answer
    x = 14,868.80

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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.