Home / 15,113.10-20,854.49-8,738.67

Finding the Fourth Proportional to 15,113.10, 20,854.49 and 8,738.67

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Solution

The fourth proportional to 15,113.10, 20,854.49 and 8,738.67 is: 12,058.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113.10 : 20,854.49 = 8,738.67 : x
  2. Step 2: Convert to fraction form
    15,113.10/20,854.49 = 8,738.67/x
  3. Step 3: Cross multiply
    15,113.10x = 20,854.49 × 8,738.67
  4. Step 4: Simplify right side
    15,113.10x = 182,240,506.13
  5. Step 5: Solve for x
    x = 182,240,506.13/15,113.10
  6. Step 6: Final answer
    x = 12,058.45

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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.