Home / 10,819.70-14,931.30-6,040.10

Finding the Fourth Proportional to 10,819.70, 14,931.30 and 6,040.10

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Solution

The fourth proportional to 10,819.70, 14,931.30 and 6,040.10 is: 8,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.70 : 14,931.30 = 6,040.10 : x
  2. Step 2: Convert to fraction form
    10,819.70/14,931.30 = 6,040.10/x
  3. Step 3: Cross multiply
    10,819.70x = 14,931.30 × 6,040.10
  4. Step 4: Simplify right side
    10,819.70x = 90,186,545.13
  5. Step 5: Solve for x
    x = 90,186,545.13/10,819.70
  6. Step 6: Final answer
    x = 8,335.40

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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.