Home / 10,139.88-14,002.66-9,587.67

Finding the Fourth Proportional to 10,139.88, 14,002.66 and 9,587.67

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Solution

The fourth proportional to 10,139.88, 14,002.66 and 9,587.67 is: 13,240.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,139.88 : 14,002.66 = 9,587.67 : x
  2. Step 2: Convert to fraction form
    10,139.88/14,002.66 = 9,587.67/x
  3. Step 3: Cross multiply
    10,139.88x = 14,002.66 × 9,587.67
  4. Step 4: Simplify right side
    10,139.88x = 134,252,883.20
  5. Step 5: Solve for x
    x = 134,252,883.20/10,139.88
  6. Step 6: Final answer
    x = 13,240.09

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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.