Home / 9,157.06-12,645.70-7,822.98

Finding the Fourth Proportional to 9,157.06, 12,645.70 and 7,822.98

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Solution

The fourth proportional to 9,157.06, 12,645.70 and 7,822.98 is: 10,803.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.06 : 12,645.70 = 7,822.98 : x
  2. Step 2: Convert to fraction form
    9,157.06/12,645.70 = 7,822.98/x
  3. Step 3: Cross multiply
    9,157.06x = 12,645.70 × 7,822.98
  4. Step 4: Simplify right side
    9,157.06x = 98,927,058.19
  5. Step 5: Solve for x
    x = 98,927,058.19/9,157.06
  6. Step 6: Final answer
    x = 10,803.36

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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.