Home / 9,332.51-12,879.02-5,140.76

Finding the Fourth Proportional to 9,332.51, 12,879.02 and 5,140.76

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Solution

The fourth proportional to 9,332.51, 12,879.02 and 5,140.76 is: 7,094.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,332.51 : 12,879.02 = 5,140.76 : x
  2. Step 2: Convert to fraction form
    9,332.51/12,879.02 = 5,140.76/x
  3. Step 3: Cross multiply
    9,332.51x = 12,879.02 × 5,140.76
  4. Step 4: Simplify right side
    9,332.51x = 66,207,950.86
  5. Step 5: Solve for x
    x = 66,207,950.86/9,332.51
  6. Step 6: Final answer
    x = 7,094.33

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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.