Home / 13,715.63-18,927.46-7,748.46

Finding the Fourth Proportional to 13,715.63, 18,927.46 and 7,748.46

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Solution

The fourth proportional to 13,715.63, 18,927.46 and 7,748.46 is: 10,692.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.63 : 18,927.46 = 7,748.46 : x
  2. Step 2: Convert to fraction form
    13,715.63/18,927.46 = 7,748.46/x
  3. Step 3: Cross multiply
    13,715.63x = 18,927.46 × 7,748.46
  4. Step 4: Simplify right side
    13,715.63x = 146,658,666.71
  5. Step 5: Solve for x
    x = 146,658,666.71/13,715.63
  6. Step 6: Final answer
    x = 10,692.81

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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.