Home / 15,678.64-23,513.22-6,315.64

Finding the Fourth Proportional to 15,678.64, 23,513.22 and 6,315.64

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Solution

The fourth proportional to 15,678.64, 23,513.22 and 6,315.64 is: 9,471.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.64 : 23,513.22 = 6,315.64 : x
  2. Step 2: Convert to fraction form
    15,678.64/23,513.22 = 6,315.64/x
  3. Step 3: Cross multiply
    15,678.64x = 23,513.22 × 6,315.64
  4. Step 4: Simplify right side
    15,678.64x = 148,501,032.76
  5. Step 5: Solve for x
    x = 148,501,032.76/15,678.64
  6. Step 6: Final answer
    x = 9,471.55

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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.