Home / 15,690.47-23,547.04-9,107.87

Finding the Fourth Proportional to 15,690.47, 23,547.04 and 9,107.87

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Solution

The fourth proportional to 15,690.47, 23,547.04 and 9,107.87 is: 13,668.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690.47 : 23,547.04 = 9,107.87 : x
  2. Step 2: Convert to fraction form
    15,690.47/23,547.04 = 9,107.87/x
  3. Step 3: Cross multiply
    15,690.47x = 23,547.04 × 9,107.87
  4. Step 4: Simplify right side
    15,690.47x = 214,463,238.70
  5. Step 5: Solve for x
    x = 214,463,238.70/15,690.47
  6. Step 6: Final answer
    x = 13,668.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.