Home / 19,113.18-28,677.90-9,259.80

Finding the Fourth Proportional to 19,113.18, 28,677.90 and 9,259.80

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Solution

The fourth proportional to 19,113.18, 28,677.90 and 9,259.80 is: 13,893.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.18 : 28,677.90 = 9,259.80 : x
  2. Step 2: Convert to fraction form
    19,113.18/28,677.90 = 9,259.80/x
  3. Step 3: Cross multiply
    19,113.18x = 28,677.90 × 9,259.80
  4. Step 4: Simplify right side
    19,113.18x = 265,551,618.42
  5. Step 5: Solve for x
    x = 265,551,618.42/19,113.18
  6. Step 6: Final answer
    x = 13,893.64

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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.