Home / 9,130.23-13,697.55-5,385.12

Finding the Fourth Proportional to 9,130.23, 13,697.55 and 5,385.12

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Solution

The fourth proportional to 9,130.23, 13,697.55 and 5,385.12 is: 8,078.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.23 : 13,697.55 = 5,385.12 : x
  2. Step 2: Convert to fraction form
    9,130.23/13,697.55 = 5,385.12/x
  3. Step 3: Cross multiply
    9,130.23x = 13,697.55 × 5,385.12
  4. Step 4: Simplify right side
    9,130.23x = 73,762,950.46
  5. Step 5: Solve for x
    x = 73,762,950.46/9,130.23
  6. Step 6: Final answer
    x = 8,078.98

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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.