Home / 15,986.70-22,066.29-9,275.40

Finding the Fourth Proportional to 15,986.70, 22,066.29 and 9,275.40

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Solution

The fourth proportional to 15,986.70, 22,066.29 and 9,275.40 is: 12,802.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.70 : 22,066.29 = 9,275.40 : x
  2. Step 2: Convert to fraction form
    15,986.70/22,066.29 = 9,275.40/x
  3. Step 3: Cross multiply
    15,986.70x = 22,066.29 × 9,275.40
  4. Step 4: Simplify right side
    15,986.70x = 204,673,666.27
  5. Step 5: Solve for x
    x = 204,673,666.27/15,986.70
  6. Step 6: Final answer
    x = 12,802.75

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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.