Home / 9,421.77-13,002.12-5,887.05

Finding the Fourth Proportional to 9,421.77, 13,002.12 and 5,887.05

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Solution

The fourth proportional to 9,421.77, 13,002.12 and 5,887.05 is: 8,124.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.77 : 13,002.12 = 5,887.05 : x
  2. Step 2: Convert to fraction form
    9,421.77/13,002.12 = 5,887.05/x
  3. Step 3: Cross multiply
    9,421.77x = 13,002.12 × 5,887.05
  4. Step 4: Simplify right side
    9,421.77x = 76,544,130.55
  5. Step 5: Solve for x
    x = 76,544,130.55/9,421.77
  6. Step 6: Final answer
    x = 8,124.18

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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.