Home / 9,117.15-12,556.40-7,017.63

Finding the Fourth Proportional to 9,117.15, 12,556.40 and 7,017.63

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Solution

The fourth proportional to 9,117.15, 12,556.40 and 7,017.63 is: 9,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.15 : 12,556.40 = 7,017.63 : x
  2. Step 2: Convert to fraction form
    9,117.15/12,556.40 = 7,017.63/x
  3. Step 3: Cross multiply
    9,117.15x = 12,556.40 × 7,017.63
  4. Step 4: Simplify right side
    9,117.15x = 88,116,134.24
  5. Step 5: Solve for x
    x = 88,116,134.24/9,117.15
  6. Step 6: Final answer
    x = 9,664.88

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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.