Home / 19,104.13-28,656.93-9,103.72

Finding the Fourth Proportional to 19,104.13, 28,656.93 and 9,103.72

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Solution

The fourth proportional to 19,104.13, 28,656.93 and 9,103.72 is: 13,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,104.13 : 28,656.93 = 9,103.72 : x
  2. Step 2: Convert to fraction form
    19,104.13/28,656.93 = 9,103.72/x
  3. Step 3: Cross multiply
    19,104.13x = 28,656.93 × 9,103.72
  4. Step 4: Simplify right side
    19,104.13x = 260,884,666.78
  5. Step 5: Solve for x
    x = 260,884,666.78/19,104.13
  6. Step 6: Final answer
    x = 13,655.93

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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.