Home / 8,487.63-11,711.51-4,710.20

Finding the Fourth Proportional to 8,487.63, 11,711.51 and 4,710.20

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Solution

The fourth proportional to 8,487.63, 11,711.51 and 4,710.20 is: 6,499.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.63 : 11,711.51 = 4,710.20 : x
  2. Step 2: Convert to fraction form
    8,487.63/11,711.51 = 4,710.20/x
  3. Step 3: Cross multiply
    8,487.63x = 11,711.51 × 4,710.20
  4. Step 4: Simplify right side
    8,487.63x = 55,163,495.84
  5. Step 5: Solve for x
    x = 55,163,495.84/8,487.63
  6. Step 6: Final answer
    x = 6,499.28

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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.