Home / 9,430.80-13,014.45-5,123.85

Finding the Fourth Proportional to 9,430.80, 13,014.45 and 5,123.85

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Solution

The fourth proportional to 9,430.80, 13,014.45 and 5,123.85 is: 7,070.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,430.80 : 13,014.45 = 5,123.85 : x
  2. Step 2: Convert to fraction form
    9,430.80/13,014.45 = 5,123.85/x
  3. Step 3: Cross multiply
    9,430.80x = 13,014.45 × 5,123.85
  4. Step 4: Simplify right side
    9,430.80x = 66,684,064.01
  5. Step 5: Solve for x
    x = 66,684,064.01/9,430.80
  6. Step 6: Final answer
    x = 7,070.88

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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.