Home / 15,421.51-23,117.55-7,107.13

Finding the Fourth Proportional to 15,421.51, 23,117.55 and 7,107.13

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Solution

The fourth proportional to 15,421.51, 23,117.55 and 7,107.13 is: 10,653.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421.51 : 23,117.55 = 7,107.13 : x
  2. Step 2: Convert to fraction form
    15,421.51/23,117.55 = 7,107.13/x
  3. Step 3: Cross multiply
    15,421.51x = 23,117.55 × 7,107.13
  4. Step 4: Simplify right side
    15,421.51x = 164,299,433.13
  5. Step 5: Solve for x
    x = 164,299,433.13/15,421.51
  6. Step 6: Final answer
    x = 10,653.91

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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.