Home / 15,581.04-21,496.76-9,207.88

Finding the Fourth Proportional to 15,581.04, 21,496.76 and 9,207.88

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Solution

The fourth proportional to 15,581.04, 21,496.76 and 9,207.88 is: 12,703.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.04 : 21,496.76 = 9,207.88 : x
  2. Step 2: Convert to fraction form
    15,581.04/21,496.76 = 9,207.88/x
  3. Step 3: Cross multiply
    15,581.04x = 21,496.76 × 9,207.88
  4. Step 4: Simplify right side
    15,581.04x = 197,939,586.47
  5. Step 5: Solve for x
    x = 197,939,586.47/15,581.04
  6. Step 6: Final answer
    x = 12,703.88

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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.