Home / 9,661.08-13,332.47-5,412.11

Finding the Fourth Proportional to 9,661.08, 13,332.47 and 5,412.11

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Solution

The fourth proportional to 9,661.08, 13,332.47 and 5,412.11 is: 7,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661.08 : 13,332.47 = 5,412.11 : x
  2. Step 2: Convert to fraction form
    9,661.08/13,332.47 = 5,412.11/x
  3. Step 3: Cross multiply
    9,661.08x = 13,332.47 × 5,412.11
  4. Step 4: Simplify right side
    9,661.08x = 72,156,700.49
  5. Step 5: Solve for x
    x = 72,156,700.49/9,661.08
  6. Step 6: Final answer
    x = 7,468.80

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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.