Home / 8,151.27-11,248.91-5,320.45

Finding the Fourth Proportional to 8,151.27, 11,248.91 and 5,320.45

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Solution

The fourth proportional to 8,151.27, 11,248.91 and 5,320.45 is: 7,342.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.27 : 11,248.91 = 5,320.45 : x
  2. Step 2: Convert to fraction form
    8,151.27/11,248.91 = 5,320.45/x
  3. Step 3: Cross multiply
    8,151.27x = 11,248.91 × 5,320.45
  4. Step 4: Simplify right side
    8,151.27x = 59,849,263.21
  5. Step 5: Solve for x
    x = 59,849,263.21/8,151.27
  6. Step 6: Final answer
    x = 7,342.32

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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.