Home / 8,290.63-11,437.20-4,931.56

Finding the Fourth Proportional to 8,290.63, 11,437.20 and 4,931.56

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Solution

The fourth proportional to 8,290.63, 11,437.20 and 4,931.56 is: 6,803.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.63 : 11,437.20 = 4,931.56 : x
  2. Step 2: Convert to fraction form
    8,290.63/11,437.20 = 4,931.56/x
  3. Step 3: Cross multiply
    8,290.63x = 11,437.20 × 4,931.56
  4. Step 4: Simplify right side
    8,290.63x = 56,403,238.03
  5. Step 5: Solve for x
    x = 56,403,238.03/8,290.63
  6. Step 6: Final answer
    x = 6,803.25

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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.