Home / 13,031.53-17,970.33-11,591.35

Finding the Fourth Proportional to 13,031.53, 17,970.33 and 11,591.35

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Solution

The fourth proportional to 13,031.53, 17,970.33 and 11,591.35 is: 15,984.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031.53 : 17,970.33 = 11,591.35 : x
  2. Step 2: Convert to fraction form
    13,031.53/17,970.33 = 11,591.35/x
  3. Step 3: Cross multiply
    13,031.53x = 17,970.33 × 11,591.35
  4. Step 4: Simplify right side
    13,031.53x = 208,300,384.65
  5. Step 5: Solve for x
    x = 208,300,384.65/13,031.53
  6. Step 6: Final answer
    x = 15,984.34

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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.