Home / 26,279.18-39,417.81-7,810.70

Finding the Fourth Proportional to 26,279.18, 39,417.81 and 7,810.70

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Solution

The fourth proportional to 26,279.18, 39,417.81 and 7,810.70 is: 11,715.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,279.18 : 39,417.81 = 7,810.70 : x
  2. Step 2: Convert to fraction form
    26,279.18/39,417.81 = 7,810.70/x
  3. Step 3: Cross multiply
    26,279.18x = 39,417.81 × 7,810.70
  4. Step 4: Simplify right side
    26,279.18x = 307,880,688.57
  5. Step 5: Solve for x
    x = 307,880,688.57/26,279.18
  6. Step 6: Final answer
    x = 11,715.76

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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.