Home / 15,113.91-20,851.56-9,368.77

Finding the Fourth Proportional to 15,113.91, 20,851.56 and 9,368.77

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Solution

The fourth proportional to 15,113.91, 20,851.56 and 9,368.77 is: 12,925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113.91 : 20,851.56 = 9,368.77 : x
  2. Step 2: Convert to fraction form
    15,113.91/20,851.56 = 9,368.77/x
  3. Step 3: Cross multiply
    15,113.91x = 20,851.56 × 9,368.77
  4. Step 4: Simplify right side
    15,113.91x = 195,353,469.78
  5. Step 5: Solve for x
    x = 195,353,469.78/15,113.91
  6. Step 6: Final answer
    x = 12,925.41

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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.