Home / 11,117.56-16,657.40-9,715.46

Finding the Fourth Proportional to 11,117.56, 16,657.40 and 9,715.46

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Solution

The fourth proportional to 11,117.56, 16,657.40 and 9,715.46 is: 14,556.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.56 : 16,657.40 = 9,715.46 : x
  2. Step 2: Convert to fraction form
    11,117.56/16,657.40 = 9,715.46/x
  3. Step 3: Cross multiply
    11,117.56x = 16,657.40 × 9,715.46
  4. Step 4: Simplify right side
    11,117.56x = 161,834,303.40
  5. Step 5: Solve for x
    x = 161,834,303.40/11,117.56
  6. Step 6: Final answer
    x = 14,556.64

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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.