Home / 9,240.71-12,752.18-4,991.77

Finding the Fourth Proportional to 9,240.71, 12,752.18 and 4,991.77

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Solution

The fourth proportional to 9,240.71, 12,752.18 and 4,991.77 is: 6,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,240.71 : 12,752.18 = 4,991.77 : x
  2. Step 2: Convert to fraction form
    9,240.71/12,752.18 = 4,991.77/x
  3. Step 3: Cross multiply
    9,240.71x = 12,752.18 × 4,991.77
  4. Step 4: Simplify right side
    9,240.71x = 63,655,885.80
  5. Step 5: Solve for x
    x = 63,655,885.80/9,240.71
  6. Step 6: Final answer
    x = 6,888.64

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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.