Home / 15,543.90-21,441.74-9,574.29

Finding the Fourth Proportional to 15,543.90, 21,441.74 and 9,574.29

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Solution

The fourth proportional to 15,543.90, 21,441.74 and 9,574.29 is: 13,207.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,543.90 : 21,441.74 = 9,574.29 : x
  2. Step 2: Convert to fraction form
    15,543.90/21,441.74 = 9,574.29/x
  3. Step 3: Cross multiply
    15,543.90x = 21,441.74 × 9,574.29
  4. Step 4: Simplify right side
    15,543.90x = 205,289,388.99
  5. Step 5: Solve for x
    x = 205,289,388.99/15,543.90
  6. Step 6: Final answer
    x = 13,207.07

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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.