Home / 15,988.87-22,069.26-9,275.99

Finding the Fourth Proportional to 15,988.87, 22,069.26 and 9,275.99

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Solution

The fourth proportional to 15,988.87, 22,069.26 and 9,275.99 is: 12,803.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.87 : 22,069.26 = 9,275.99 : x
  2. Step 2: Convert to fraction form
    15,988.87/22,069.26 = 9,275.99/x
  3. Step 3: Cross multiply
    15,988.87x = 22,069.26 × 9,275.99
  4. Step 4: Simplify right side
    15,988.87x = 204,714,235.07
  5. Step 5: Solve for x
    x = 204,714,235.07/15,988.87
  6. Step 6: Final answer
    x = 12,803.55

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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.