Home / 7,011.88-10,507.77-3,312.20

Finding the Fourth Proportional to 7,011.88, 10,507.77 and 3,312.20

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Solution

The fourth proportional to 7,011.88, 10,507.77 and 3,312.20 is: 4,963.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.88 : 10,507.77 = 3,312.20 : x
  2. Step 2: Convert to fraction form
    7,011.88/10,507.77 = 3,312.20/x
  3. Step 3: Cross multiply
    7,011.88x = 10,507.77 × 3,312.20
  4. Step 4: Simplify right side
    7,011.88x = 34,803,835.79
  5. Step 5: Solve for x
    x = 34,803,835.79/7,011.88
  6. Step 6: Final answer
    x = 4,963.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.