Home / 9,077.40-12,526.43-5,300.78

Finding the Fourth Proportional to 9,077.40, 12,526.43 and 5,300.78

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Solution

The fourth proportional to 9,077.40, 12,526.43 and 5,300.78 is: 7,314.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,077.40 : 12,526.43 = 5,300.78 : x
  2. Step 2: Convert to fraction form
    9,077.40/12,526.43 = 5,300.78/x
  3. Step 3: Cross multiply
    9,077.40x = 12,526.43 × 5,300.78
  4. Step 4: Simplify right side
    9,077.40x = 66,399,760.48
  5. Step 5: Solve for x
    x = 66,399,760.48/9,077.40
  6. Step 6: Final answer
    x = 7,314.84

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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.