Home / 11,258.90-15,543.50-6,783.75

Finding the Fourth Proportional to 11,258.90, 15,543.50 and 6,783.75

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Solution

The fourth proportional to 11,258.90, 15,543.50 and 6,783.75 is: 9,365.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,258.90 : 15,543.50 = 6,783.75 : x
  2. Step 2: Convert to fraction form
    11,258.90/15,543.50 = 6,783.75/x
  3. Step 3: Cross multiply
    11,258.90x = 15,543.50 × 6,783.75
  4. Step 4: Simplify right side
    11,258.90x = 105,443,184.21
  5. Step 5: Solve for x
    x = 105,443,184.21/11,258.90
  6. Step 6: Final answer
    x = 9,365.32

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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.